Patent US4056223A successfully refreshed from Google Patents.
US4056223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable container and blank therefor
Assignee: Packaging Corp of America
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Filing: 1976-08-11
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Granted: 1977-11-01
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Expires: 1996-08-11
Abstract
Abstract A foldable container having reinforced corners is provided. The container includes a bottom section which is delimited by upright side and end panels. The side and end panels are foldably connected to the periphery of the bottom section and cooperate therewith to form an open top product-accommodating compartment. Pairs of corner-reinforcing members are foldably connected to the edges of each end panel adjacent the side panels. Each corner-reinforcing member is provided with a first section connected to the end panel edge and partially overlying and being secured to the interior surface of the adjacent side panel. A second section is connected to the first section and is secured thereto in at least a partial foldback relation. A third section is connected to the second section and is secured in partially overlying relation with the interior surface of the end panel.
Inventors
- 👤 Michael M. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:23
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/441; B65D5/443; B65D5/001; B65D5/0015; B65D5/0045; B31; B31B; B31B2100/00; B31B2120/00; B31B2120/502; B31B50/00; B31B50/74; B31B50/81; Y; Y10; Y10S; Y10S229/00; Y10S229/915; Y10S229/918
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
191 words
A foldable container formed from a single blank of sheet material and having at least one reinforced corner, said container comprising a bottom section; end and side panels foldably connected respectively to first and second peripheral segments of said bottom section and extending upright therefrom and delimiting an open top, said upright end and side panels forming at least one corner therebetween; a top closure flap foldably connected to at least one of said side panels; and a corner-reinforcing member foldably connected to an edge of the end panel adjacent said corner, said corner-reinforcing member including a first section foldably connected to the end panel edge and having a surface thereof secured to an interior surface of the adjacent side panel, a second section having a first portion foldably connected to said first section and secured to the opposite surface thereof in foldback relation and a second portion foldably connected to said first portion and extending angularly therefrom and disposed in inwardly spaced relation with respect to said end panel edge, and a third section foldably connected to said second portion and secured to the interior surface of said end panel.
Claim 2
Dependent Claim
191 words
A foldable container formed from a single blank of sheet material and having at least one reinforced corner, said container comprising a bottom section; end and side panels foldably connected respectively to first and second peripheral segments of said bottom section and extending upright therefrom and delimiting an open top, said upright end and side panels forming at least one corner therebetween; a top closure flap foldably connected to at least one of said side panels; and a corner-reinforcing member foldably connected to an edge of the end panel adjacent said corner, said corner-reinforcing member including a first section foldably connected to the end panel edge and having a surface thereof secured to an interior surface of the adjacent side panel, a second section having a first portion foldably connected to said first section and secured to the opposite surface thereof in foldback relation and a second portion foldably connected to said first portion and extending angularly therefrom and disposed in inwardly spaced relation with respect to said end panel edge, and a third section foldably connected to said second portion and secured to the interior surface of said end panel.
Claim 3
Dependent Claim
28 words
The foldable container of claim 1 wherein the upright end and side panels form four corners therebetween and a corner-reinforcing member is provided for each of said corners.
Claim 4
Dependent Claim
40 words
The foldable container of claim 2 wherein the end and side panels have the same height measured from the bottom section, and all of the sections of the corner-reinforcing member have the same height as said end and side panels.
Claim 5
Dependent Claim
44 words
The foldable container of claim 3 wherein each side panel has a top closure flap foldably connected thereto, and each end panel has a tuck flap foldably connected thereto, said top closure and tuck flaps coacting with one another to form a closed top.
Claim 6
Dependent Claim
174 words
A blank of foldable sheet material for use in forming a container having a closeable top and reinforced corners, said blank comprising a bottom section; side panels connected by first foldlines to opposite peripheral segments of said bottom section, top closure flaps connected by second foldlines to said side panels, said first and second foldlines being in spaced substantially parallel relation; end panels connected by third foldlines to opposite peripheral segments of said bottom section, said side and end panels delimiting said bottom sections; and pairs of corner-reinforcing members connected by fourth foldlines to opposite peripheral segments of each end panel, said fourth foldlines being substantially parallel to said second foldines, each corner-reinforcing member being adjacent a side panel and top closure flap and separated therefrom by an elongated slit; each corner-reinforcing member including foldably connected sections arranged in side by side relation and extending from the end panel peripheral segment a distance substantially equal to the combined dimensions of the adjacent side panel and top closure flap measured normal to said first foldline.
Claim 7
Dependent Claim
174 words
A blank of foldable sheet material for use in forming a container having a closeable top and reinforced corners, said blank comprising a bottom section; side panels connected by first foldlines to opposite peripheral segments of said bottom section, top closure flaps connected by second foldlines to said side panels, said first and second foldlines being in spaced substantially parallel relation; end panels connected by third foldlines to opposite peripheral segments of said bottom section, said side and end panels delimiting said bottom sections; and pairs of corner-reinforcing members connected by fourth foldlines to opposite peripheral segments of each end panel, said fourth foldlines being substantially parallel to said second foldines, each corner-reinforcing member being adjacent a side panel and top closure flap and separated therefrom by an elongated slit; each corner-reinforcing member including foldably connected sections arranged in side by side relation and extending from the end panel peripheral segment a distance substantially equal to the combined dimensions of the adjacent side panel and top closure flap measured normal to said first foldline.
Claim 8
Dependent Claim
28 words
The blank of claim 5 wherein the length of each fourth foldline is substantially equal to the dimension of the end panel measured normal to said third foldline.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |