US3263899A - Carton tear strip arrangement with reclosure feature - Google Patents

Carton tear strip arrangement with reclosure feature Download PDF

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Publication number
US3263899A
US3263899A US232415A US23241562A US3263899A US 3263899 A US3263899 A US 3263899A US 232415 A US232415 A US 232415A US 23241562 A US23241562 A US 23241562A US 3263899 A US3263899 A US 3263899A
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Prior art keywords
carton
closure
tear strip
panel
tuck
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US232415A
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Peter C Collura
Robert M Hurley
Morton H Robinson
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Container Corp
Smurfit Kappa Packaging Corp
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Container Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/541—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps

Definitions

  • the invention comprehends a tear strip arrangement including integral tuck tab means for reclosure of the carton after it has been initially opened by removal of the tear strip.
  • This invention is especially suitable for use in folding cartons of the type employed for the packaging of frozen foods, ice cream, and other commodities which may be dispensed piecemeal from their cartons, rather than all at one time.
  • tear strip arrangements per se are not new in the folding carton art, the tear strip arrangements available on folding cartons are designed primarily to facilitate opening of the carton, and do not include any provisions for reclosure of the cartons.
  • a more specific object of the invention is the provision, in the carton of the type described, of an integral tuck tab formed on the cover of the carton by the lines of tear which form the tear strip, so that upon removal of the tear strip the tuck tab is exposed for use in reclosure of the carton.
  • FIGURE 1 is a perspective view of a carton having a reclosable tear strip arrangement embodying features of the invention
  • FIGURE 2 is a top plan view of the structure illustrated in FIGURE 1, with the cover shown folding back in the open position prior to gluing;
  • FIGURE 3 is a fragmentary top plan view of the structure illustrated in FIGURE 1, with a portion of the tear strip removed;
  • FIGURE 4 is a fragmentary top plan view of the structure illustrated in FIGURE 3, with a portion of the cover shown folded back 180 after the glued carton has been opened;
  • FIGURE 5 is view similar to FIGURE 3 but showing the carton in a reclosed position after it has been initially opened;
  • FIGURE 6 is a plan view of a blank from which the carton of the previously views may be formed
  • FIGURE 7 is a perspective view of a carton illustrating a modified form of the invention.
  • FIGURE 8 is a plan view of the blank from which the carton of FIGURE 7 may be formed.
  • FIGURE 1 of the drawings may be formed from the unitary blank B of suitable sheet material such as foldable paperboard illustrated in FIGURE 6 of the drawings.
  • Blank B is cut and scored to provide a plurality of serially arranged panels hingedly interconnected to form a tubular structure. As best seen in FIGURE 6 these panels, viewing from left to right, are as follows:
  • panels 10 and 18 may be disposed in overlapped relation and secured to each other in any desired manner, such as by means of an adhesive shown as applied at 19 to panel 10 of the blank.
  • Closure of the bottom end of the carton may be accomplished 'by a pair of front and rear side wall bottom closure flaps 20 and 22, respectively, and a pair of end wall bottom closure flaps 24 which are folded over on top of one another in the conventional manner of forming a seal end carton.
  • Bottom closure flap 20 may be provided with adhesive as at 26 to secure the bottom of the carton in closed condition.
  • Closure of the upper portion of the carton is likewise provided by a plurality of closure flaps which include front and rear side wall upper closure flaps 30 and 32, respectively, and end wall upper closure flaps 34.
  • the upper closure flaps are hinged to the upper portions of the re spective main panels of the carton in corresponding relation to the bottom closure flaps of the carton.
  • the upper closure flaps form the top wall of the carton.
  • rear side wall upper closure flap 32 which is also the outer closure flap or closure panel when the carton is closed, is divided into an inner or tuck section 36, an outer or retaining section 38, and an intermediate or tear strip section 40 disposed between the inner and outer sections.
  • tear strip section is formed by a pair of spaced, generally parallel, inner and outer weakened lines of tear 42 and 44, respectively, which extend longitudinally across closure panel 32.
  • inner tear line 42 is provided with a central outwardly offset portion which defines a tuck tab 46 projecting outwardly between the inner and outer tear lines.
  • Tuck tab 46 is adapted to be received within a tuck ta-b receiving slit 48 formed in the upper inner closure flap 30 or top wall of the carton upon reclosure of the carton in a manner described later in the specification.
  • Closure of the upper end of the carton is accomplished by gluing the closure flaps to each other in a method similar to the conventional seal end closure.
  • Closure flap 30 is provided with adhesive which is applied along the elongated area 50 and the smaller spaced areas 52 and 54.
  • closure panel 32 may be provided at one end thereof with a pair of notches 56 which define a tear strip head 58, as best seen in FIGURE 6.
  • the upper and lower ends of the carton may be closed and sealed in the same manner as a conventional seal end carton.
  • the last step in closing the upper end of the carton is the folding of closure panel 32 from the open position shown in FIG- URE 2 of the drawings to the closed position shown in FIGURE 3 of the drawings.
  • tea-r strip 40 is ripped off of the top of the carton. Although tuck section 36 and retaining section 38 of closure panel 32 may still adhere to the carton because of the waxed surface they may be easily separated from inner closure flap 30 to permit the end wall upper closure flaps to be opened.
  • FIGURES 6 and 7 of the drawings it will be seen that a modified form of the invention is shown illustrating the same basic tear strip and reclosure feature illustrated in the previous views.
  • FIGURE 7 of the drawings may be formed from the unitary blank of foldable paperboard indicated generally at BB shown in FIGURE 8 of the drawings. 7
  • Blank BB may be cut and scored to provide a plurality of serially connected main panels which, as viewed from left to right, include the following:
  • Closure of the ends of the carton may be accomplished by a plurality of closure flaps hinged to the ends of the main panels of the carton. These closure fiaps include flaps 70, 72, 74, and 76, which are hinge'dly connected to panels 60, 62, 64, and 66, respectively. a
  • front wall end closure flaps 70 may be provided with female locking slits 82 adapted to receive male looking tabs 80 formed on'the ends of rear wall end closure flaps 74 to provide a conventional interlocking end closure arrangement.
  • closure panel 68 is divided into an inner or tuck section 136, an intermediate or tear strip section 140, and an outer or retaining section 138.
  • closure panel 68 When the carton is closed closure panel 68 is folded overlap a portion of front panel 60 of the carton, and retaining section 138 of the closure panel is secured to front wall panel 60 of the carton by an adhesive as indicated at 78.
  • Tear strip 140 is similar in construction to tear strip 40 of the previous embodiment, and is defined by a pair of inner and outer weakened lines of tear 142 and 144, respectively, which are disposed in spaced parallel relation and which extend longitudinally across closure panel 68.
  • Inner tear line 142 is provided with a central offset portion to define a tuck tab 146 which is integral with the inner or tuck section 136 and which projects outwardly therefrom. Tuck tab 146 is adapted to be received within tuck tab receiving slit 148 formed in carton front wall panel 60.
  • This carton is preferably formed in tubular form with retaining section 138 of closure panel 68 glued to the front wall 60 of the carton to form a tubular structure open at the ends to permit end loading. After the carton has been loaded and the ends of the carton have been closed and interlocked as previously described, the carton may be opened by removal of the tear strip in the same manner as the previous carton.
  • tuck tab 146 Upon removal of the tear strip it will be seen that tuck tab 146 is exposed and is adapted to be received within tuck tab receiving slit 148 upon reclosure of the carton.
  • each embodiment of the invention there is provided a tear strip arrangement wherein the tear strip is defined by a pair of weakened lines of tear which also form an integral tuck tab on a portion of closure panel, which tab is adapted to be re-inserted within a complementary slit in the Wall of the carton upon reclosure.
  • closure panel 68 could be formed with only a tuck section and a retaining section separated by a single line of tear, such as a tear string, which has an offset portion defining a tuck tab.
  • each of said sections extending substantially the entire length of said front closure panel
  • said intermediate section comprising a removable tear strip formed by a pair of spaced, first and second weakened lines of tear extending substantially the entire length of said front closure panel adjacent the tuck and retaining sections, respectively, of said front closure panel;
  • said first weakened line of tear having a medial portion offset toward said second weakened line of tear to form a tuck tab disposed to project from the free edge of said tuck section, after the tear st-rip has been removed, for insertion, upon reclosure of carton, into a tuck receiving opening formed in said front side wall under said removable tear strip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Description

2, 1966 P. c. COLLURA ETAL 3,263,899
CARTON TEAR STRIP ARRANGEMENT WITH RECLOSURE FEATURE 5 Sheets-Sheet 1 Filed Oct. 25, 1962 Aug. 2, 1966 P. c. COLLURA ETAL 3,
CARTON TEAR STRIP ARRANGEMENT LWITH RECLOSURE FEATURE Filed Oct. 23, 1962 5 Sheets-Sheet 2 g- 1956 P. c. COLLURA ETAL 3,263,899
CARTON TEAR STRIP ARRANGEMENT WITH RECLOSURE FEATURE Filed Oct. 23, 1962 (5 Sheets-Sheet :5
United States Patent 3,263,899 CARTON TEAR STRIP ARRANGEMENT WITH RECLOSURE FEATURE Peter C. Collura, Waltham, and Robert M. Hurley, Lexington, Mass., and Morton H. Robinson, Devon, Pa., assignors to Container Corporation of America, Chicago, 111., a corporation of Delaware Filed Get. 23, 1962, Ser. No. 232,415 1 Claim. (Cl. 229-51) This invention relates to paperboard folding cartons. and more particularly to an improved tear strip arrangement for opening cartons.
The invention comprehends a tear strip arrangement including integral tuck tab means for reclosure of the carton after it has been initially opened by removal of the tear strip. This invention is especially suitable for use in folding cartons of the type employed for the packaging of frozen foods, ice cream, and other commodities which may be dispensed piecemeal from their cartons, rather than all at one time.
Although tear strip arrangements per se are not new in the folding carton art, the tear strip arrangements available on folding cartons are designed primarily to facilitate opening of the carton, and do not include any provisions for reclosure of the cartons.
It is therefore a primary object of this invention to provide, in a folding carton, a tear strip arrangement for opening the carton which includes a tuck tab device for maintaining thecarton in a closed condition after it has 'once been opened.
A more specific object of the invention is the provision, in the carton of the type described, of an integral tuck tab formed on the cover of the carton by the lines of tear which form the tear strip, so that upon removal of the tear strip the tuck tab is exposed for use in reclosure of the carton.
These and other objects of the invention will be apparent from an examination of the following description and drawings, wherein:
FIGURE 1 is a perspective view of a carton having a reclosable tear strip arrangement embodying features of the invention; 1
FIGURE 2 is a top plan view of the structure illustrated in FIGURE 1, with the cover shown folding back in the open position prior to gluing;
FIGURE 3 is a fragmentary top plan view of the structure illustrated in FIGURE 1, with a portion of the tear strip removed;
FIGURE 4 is a fragmentary top plan view of the structure illustrated in FIGURE 3, with a portion of the cover shown folded back 180 after the glued carton has been opened;
FIGURE 5 is view similar to FIGURE 3 but showing the carton in a reclosed position after it has been initially opened;
FIGURE 6 is a plan view of a blank from which the carton of the previously views may be formed;
FIGURE 7 is a perspective view of a carton illustrating a modified form of the invention; and
FIGURE 8 is a plan view of the blank from which the carton of FIGURE 7 may be formed.
It will be understood that, for purposes of clarity, certain elements have been intentionally omitted from certain views where they are believed to be illustrated to better advantage in other views.
Referring now to the drawings for a better understanding of the invention, and particularly to FIGURES 1 through 6, it 'Will be seen that the carton illustrated in FIGURE 1 of the drawings may be formed from the unitary blank B of suitable sheet material such as foldable paperboard illustrated in FIGURE 6 of the drawings.
Blank B is cut and scored to provide a plurality of serially arranged panels hingedly interconnected to form a tubular structure. As best seen in FIGURE 6 these panels, viewing from left to right, are as follows:
First end wall panel 10, first or front side wall panel 12, second end wall panel 14, second or rear side wall panel 16, and connecting panel 18. When the blank is folded to provide a tubular structure panels 10 and 18 may be disposed in overlapped relation and secured to each other in any desired manner, such as by means of an adhesive shown as applied at 19 to panel 10 of the blank.
It will be understood that if the inner or outer surface of blank are treated with a waterproofing material such as wax, it will be necessary to provide uncoated surfaces in order for the adhesive employed to adhere to at least one such surface.
Closure of the bottom end of the carton may be accomplished 'by a pair of front and rear side wall bottom closure flaps 20 and 22, respectively, and a pair of end wall bottom closure flaps 24 which are folded over on top of one another in the conventional manner of forming a seal end carton. Bottom closure flap 20 may be provided with adhesive as at 26 to secure the bottom of the carton in closed condition.
Closure of the upper portion of the carton ,is likewise provided by a plurality of closure flaps which include front and rear side wall upper closure flaps 30 and 32, respectively, and end wall upper closure flaps 34. The upper closure flaps are hinged to the upper portions of the re spective main panels of the carton in corresponding relation to the bottom closure flaps of the carton. Thus, the upper closure flaps form the top wall of the carton.
As best seen in FIGURE 6 rear side wall upper closure flap 32, which is also the outer closure flap or closure panel when the carton is closed, is divided into an inner or tuck section 36, an outer or retaining section 38, and an intermediate or tear strip section 40 disposed between the inner and outer sections.
It will be seen that the tear strip section, or tear strip 40, is formed by a pair of spaced, generally parallel, inner and outer weakened lines of tear 42 and 44, respectively, which extend longitudinally across closure panel 32.
Still referring to FIGURE 6 of the drawings it will be seen that inner tear line 42 is provided with a central outwardly offset portion which defines a tuck tab 46 projecting outwardly between the inner and outer tear lines.
Tuck tab 46 is adapted to be received within a tuck ta-b receiving slit 48 formed in the upper inner closure flap 30 or top wall of the carton upon reclosure of the carton in a manner described later in the specification.
Closure of the upper end of the carton is accomplished by gluing the closure flaps to each other in a method similar to the conventional seal end closure. Closure flap 30 is provided with adhesive which is applied along the elongated area 50 and the smaller spaced areas 52 and 54. Thus, when the end wall upper closure flaps 34 have been folded into position and the closure flap 30 folded down on top of the flaps 34, the carton top wall is formed and closure panel 32 is folded over and adhesively secured to the outer surface of flap 30. It will be noted that if the inside surface of closure panel 32 is wax coated it will still adhere to the adhesive on flap 30, but may be pulled away from the flap to permit the complete opening of the upper end of the carton.
To facilitate grasping of tear strip 40, closure panel 32 may be provided at one end thereof with a pair of notches 56 which define a tear strip head 58, as best seen in FIGURE 6.
As previously mentioned the upper and lower ends of the carton may be closed and sealed in the same manner as a conventional seal end carton. The last step in closing the upper end of the carton is the folding of closure panel 32 from the open position shown in FIG- URE 2 of the drawings to the closed position shown in FIGURE 3 of the drawings.
To open the carton, tea-r strip 40 is ripped off of the top of the carton. Although tuck section 36 and retaining section 38 of closure panel 32 may still adhere to the carton because of the waxed surface they may be easily separated from inner closure flap 30 to permit the end wall upper closure flaps to be opened.
Upon reclosure of the carton, the end wall upper closure flaps are folded back to closed position shown in FIGURE 4 and tuck section 36, which is the only part remaining of closure panel 32, is folded over into the closed position of FIGURE 5 with the tuck tab 46 being inserted in the tuck tab receiving slit 48 formed in inner closure flap 30.
Turning now to FIGURES 6 and 7 of the drawings it will be seen that a modified form of the invention is shown illustrating the same basic tear strip and reclosure feature illustrated in the previous views.
The carton illustrated in FIGURE 7 of the drawings may be formed from the unitary blank of foldable paperboard indicated generally at BB shown in FIGURE 8 of the drawings. 7
Blank BB may be cut and scored to provide a plurality of serially connected main panels which, as viewed from left to right, include the following:
Front wall panel 60, bottom wall panel 62, rear wall panel 64, top wall panel 66, and closure panel 68.
Closure of the ends of the carton may be accomplished by a plurality of closure flaps hinged to the ends of the main panels of the carton. These closure fiaps include flaps 70, 72, 74, and 76, which are hinge'dly connected to panels 60, 62, 64, and 66, respectively. a
As best seen in FIGURE 8, front wall end closure flaps 70 may be provided with female locking slits 82 adapted to receive male looking tabs 80 formed on'the ends of rear wall end closure flaps 74 to provide a conventional interlocking end closure arrangement.
As best seen in FIGURE 7, closure panel 68, like closure panel 32 of the previous embodiment, is divided into an inner or tuck section 136, an intermediate or tear strip section 140, and an outer or retaining section 138.
When the carton is closed closure panel 68 is folded overlap a portion of front panel 60 of the carton, and retaining section 138 of the closure panel is secured to front wall panel 60 of the carton by an adhesive as indicated at 78.
Tear strip 140 is similar in construction to tear strip 40 of the previous embodiment, and is defined by a pair of inner and outer weakened lines of tear 142 and 144, respectively, which are disposed in spaced parallel relation and which extend longitudinally across closure panel 68.
Inner tear line 142 is provided with a central offset portion to define a tuck tab 146 which is integral with the inner or tuck section 136 and which projects outwardly therefrom. Tuck tab 146 is adapted to be received within tuck tab receiving slit 148 formed in carton front wall panel 60. This carton is preferably formed in tubular form with retaining section 138 of closure panel 68 glued to the front wall 60 of the carton to form a tubular structure open at the ends to permit end loading. After the carton has been loaded and the ends of the carton have been closed and interlocked as previously described, the carton may be opened by removal of the tear strip in the same manner as the previous carton. It will be understood, of course that the end closure flaps of the carton need not be interlocking, but that the novel tear strip and reclosure feature can be applied to other types of cartons such as a seal end carton with a hinged cover or lid connected to the rear wall of'the carton.
Upon removal of the tear strip it will be seen that tuck tab 146 is exposed and is adapted to be received within tuck tab receiving slit 148 upon reclosure of the carton.
Thus, in each embodiment of the invention there is provided a tear strip arrangement wherein the tear strip is defined by a pair of weakened lines of tear which also form an integral tuck tab on a portion of closure panel, which tab is adapted to be re-inserted within a complementary slit in the Wall of the carton upon reclosure.
It will also be noted that closure panel 68 could be formed with only a tuck section and a retaining section separated by a single line of tear, such as a tear string, which has an offset portion defining a tuck tab.
An unlined; end-loading, top-opening, reclosable carton formed from a unitary blank of foldable paperboard, comprising in combination:
(a) a bottom wall;
(b) front and rear side Walls hinged to and upstanding from front and rear edges of said bottom wall;
(0) a pair of opposed end wall-s each including end closure flaps hinged to the bottom and side walls and secured in overlapped relation;
(d) a top wall hinged at its rear edge to an upper edge of said rear side wall;
(e) a pair of end closure panels hinged to and depending from opposite end edges of said top wall for engagement with respective end walls;
(f) a front closure panel hinged to and depending from a front edge of said top Wall and disposed to overlie at least a portion of said front side Wall, and including:
(i) an upper tuck section disposed adjacent an upper hinged edge of said front closure panel;
(ii) a lower retaining section disposed adjacent a lower free edge of said front closure panel;
(iii) an intermediate section disposed between and contiguous to said tuck and retaining sections;
(iv) each of said sections extending substantially the entire length of said front closure panel;
(v) said intermediate section comprising a removable tear strip formed by a pair of spaced, first and second weakened lines of tear extending substantially the entire length of said front closure panel adjacent the tuck and retaining sections, respectively, of said front closure panel;
(vi) said retaining section being adhesively secured to said front side wall;
(vii) said first weakened line of tear having a medial portion offset toward said second weakened line of tear to form a tuck tab disposed to project from the free edge of said tuck section, after the tear st-rip has been removed, for insertion, upon reclosure of carton, into a tuck receiving opening formed in said front side wall under said removable tear strip.
References Cited by the Examiner UNITED STATES PATENTS 1,234,483 7/1917 Luke 229-51 X 1,985,590 12/1934 Weiss 229-51 X 2,267,320 12/1941 Berch 229-51 2,354,543 7/ 1944 Ratclifi 229-51 X 2,864,547 12/ 1958 Guyer 229-51 JOSEPH R. LECLAIR, Primary Examiner.
EARLE J. DRUMMOND, FRANKLIN T. GARRETT,
Examiners.
D. T. MOORHEAD, Assistant Examiner.
Disclaimer 3,263,899.P0fier 0. 0011mm, Valthznn, and Robert M. Hurley, Lexington, Mass., and Morton H. Robin-Wm, Devon, P21. CARTON '1 EAR STRIP ARRANGEMENT WITH RECLOSURE FEATURE. Patent dated Aug. 2, 1966. Disclaimer filed June 7, 1968, by the asslgnee, Container Oorpomtion 0 America. Hereby enters this disclaimer t0 the single claim of said patent.
[Ofliciul Gazette August 27, 1968.]
US232415A 1962-10-23 1962-10-23 Carton tear strip arrangement with reclosure feature Expired - Lifetime US3263899A (en)

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US3362608A (en) * 1965-05-12 1968-01-09 Akerlund & Rausing Ab Liquid-tight closure for a parallelepipedic package
US3366310A (en) * 1967-02-23 1968-01-30 Kellog Co Easy opening reclosable carton
US3366311A (en) * 1967-02-23 1968-01-30 Kellog Co Perforated top reclosable carton
US3507442A (en) * 1968-07-29 1970-04-21 Polaroid Corp Rackable display box and method
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US20100025393A1 (en) * 2008-07-31 2010-02-04 Arnaud Talpaert Microwave Heating Apparatus
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US20110024413A1 (en) * 2008-09-17 2011-02-03 Cole Lorin R Construct for Browning and Crisping a Food Item in a Microwave Oven
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USD977968S1 (en) 2019-09-12 2023-02-14 Pratt Corrugated Holdings, Inc. Box
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US11794942B2 (en) 2019-09-12 2023-10-24 Pratt Corrugated Holdings, Inc. Method of opening a box
US20240067391A1 (en) * 2022-08-23 2024-02-29 Ryan Curry Apparatus for handling food dishes
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USD1032358S1 (en) * 2020-03-13 2024-06-25 Pratt Corrugated Holdings, Inc. Dual use box
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USD1057557S1 (en) 2020-08-31 2025-01-14 Pratt Corrugated Holdings, Inc. Locking tab for tamper-evident box
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