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US4524870A Expired / Lapsed US ⏱️ 0.0 years remaining

Visible and easy accessible package

Assignee: WestRock Minnesota Corp
•
Filing: 1983-09-06
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Granted: 1985-06-25
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Expires: 2003-09-06
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Abstract

Abstract A blank for forming a tray having a bottom wall panel and a pair of side wall panels extending therefrom and foldable relative thereto, with each side wall panel having a side flap extending therefrom. A pair of end panels extend from the bottom wall panel and are foldable relative thereto with the end panels each having an end flap extending therefrom. The end flap is connected to the end wall panel by a tearable fold line to permit the end flap to be removed therefrom. A transparent cover assembly made of plastic extends over the tray and is adhered to the side flanges and the end flaps. The side flaps and the end flaps are then folded down against the side walls and the end walls of the tray and adhered thereto. An end flap is then lifted and when pulled up, the transparent cover assembly will sever easily to permit access to the contents of the package.

Inventors

  • 👤 Harry I. Roccaforte
  • 👤 Robert A. Christie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 15:14
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/22; B65D77/30

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 371 words
A generally rectangular tray formed from a single blank of paperboard material, said tray being adapted to securely enclose an article stored therein yet enable easy and efficient access thereto, said tray comprising: a rectangular bottom wall having pairs of opposed sides and ends; a pair of rectangular upstanding side walls foldably connected respectively to the opposite sides of said bottom wall each said side wall comprising a rectangular side wall panel articulated to said bottom wall and a side flap articulated to the respective side wall panel along a fold line extending generally parallel to the bottom wall, said side flaps being foldably disposed in face-to-face contact with an outer surface of the respective side walls and adhesively secured thereto; a pair of rectangular upstanding end walls foldably connected to the opposed ends of said bottom wall, each said end wall comprising a rectangular end wall panel articulated to said bottom wall and connected to the side walls, each said end wall further comprising an end flap articulated to said end wall panel along a cut fold line extending parallel to the bottom wall, each of said end flaps being folded into face-to-face contact with an outer surface of the respective end wall panel and adhesively secured thereto with a light bond adhesive which permits the respective end flap to be peeled away from the corresponding end wall panel; and a transparent plastic cover sheet extending between the articulations of said side and end flaps to the respective side and end wall panels, said cover sheet further including edge portions overlying outer surfaces of each of said side and end flaps and adhesively secured thereto, said cover sheet including a pair of rupturable cut score lines substantailly overlying and extending substantially entirely along the articulations between the respective side wall panels and side flaps to define a medial portion of said cover sheet intermediate said rupturable cut score lines, said medial portion of said cover sheet being separable from the adjacent edge portions thereof, whereby removal of either of said end flaps from its respective end wall panel enables separation of said medial portion from the remainder of said cover sheet to provide access to material stored in said tray.
Claim 2
Dependent Claim 371 words
A generally rectangular tray formed from a single blank of paperboard material, said tray being adapted to securely enclose an article stored therein yet enable easy and efficient access thereto, said tray comprising: a rectangular bottom wall having pairs of opposed sides and ends; a pair of rectangular upstanding side walls foldably connected respectively to the opposite sides of said bottom wall each said side wall comprising a rectangular side wall panel articulated to said bottom wall and a side flap articulated to the respective side wall panel along a fold line extending generally parallel to the bottom wall, said side flaps being foldably disposed in face-to-face contact with an outer surface of the respective side walls and adhesively secured thereto; a pair of rectangular upstanding end walls foldably connected to the opposed ends of said bottom wall, each said end wall comprising a rectangular end wall panel articulated to said bottom wall and connected to the side walls, each said end wall further comprising an end flap articulated to said end wall panel along a cut fold line extending parallel to the bottom wall, each of said end flaps being folded into face-to-face contact with an outer surface of the respective end wall panel and adhesively secured thereto with a light bond adhesive which permits the respective end flap to be peeled away from the corresponding end wall panel; and a transparent plastic cover sheet extending between the articulations of said side and end flaps to the respective side and end wall panels, said cover sheet further including edge portions overlying outer surfaces of each of said side and end flaps and adhesively secured thereto, said cover sheet including a pair of rupturable cut score lines substantailly overlying and extending substantially entirely along the articulations between the respective side wall panels and side flaps to define a medial portion of said cover sheet intermediate said rupturable cut score lines, said medial portion of said cover sheet being separable from the adjacent edge portions thereof, whereby removal of either of said end flaps from its respective end wall panel enables separation of said medial portion from the remainder of said cover sheet to provide access to material stored in said tray.

References Cited (Backward Citations)

US279756A Cited
US3069273A Cited
NL104825C Cited
US3273302A Cited
US3398876A Cited
US3495759A Cited
US3825169A Cited
US3863832A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-06-24 1988-12-24 1989-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-06-24 1992-12-24 1993-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-06-24 1996-12-24 1997-06-25 $7700.00 Window Closed / Lapsed

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