US4850527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton with self positioning interlocking corners
Assignee: INTER-CITY PRODUCTS Corp (USA)
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Filing: 1988-08-03
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Granted: 1989-07-25
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Expires: 2008-08-03
Abstract
Abstract A hexagonal carton including four upstanding sidewall panels and two diagonally opposed corner panels. The entire carton is formed from a single blank. The corner panels include minor flaps hingedly foldably connected thereto which interact with minor flaps foldably hingedly connected to the adjoining sidewall panels to form a rigid interlocked cover panel which withstands lateral pressures exerted on the sidewall panels of the carton. Major flaps are foldably hingedly connected to two of the sidewall panels to form a cover panel to cover the interlocking minor flaps.
Inventors
- 👤 Gordon M. Church
- 👤 Michael A. Churvis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:35
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/4279; B65D5/02; Y; Y10; Y10S; Y10S229/00; Y10S229/92
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
173 words
A carton formed from a blank of foldable sheet material comprising: two pairs of upstanding, generally parallel sidewall panels; two upstanding corner panels, each said corner panel hingedly foldably connected to said sidewall panels intermediate and adjoining said sidewall panels; two first minor cover forming flaps hingedly foldably connected to respective first and second said sidewall panels; two second minor cover forming flaps hingedly, foldably connected to said two respective corner panels, each of said first minor flaps having a pair of edges which respectively abut with respective ones of a pair of edges of a respective one of said second minor flaps, each of said pair of edges including one edge which is substantially parallel to a first pair of said upstanding sidewall panels and another edge which is substantially parallel to a second pair of upstanding sidewall panels, whereby said minor flaps provide substantial lateral compressive strength for said carton; and a pair of major flaps hingedly foldably connected to two of said sidewall panels and substantially covering said minor flaps.
Claim 2
Dependent Claim
173 words
A carton formed from a blank of foldable sheet material comprising: two pairs of upstanding, generally parallel sidewall panels; two upstanding corner panels, each said corner panel hingedly foldably connected to said sidewall panels intermediate and adjoining said sidewall panels; two first minor cover forming flaps hingedly foldably connected to respective first and second said sidewall panels; two second minor cover forming flaps hingedly, foldably connected to said two respective corner panels, each of said first minor flaps having a pair of edges which respectively abut with respective ones of a pair of edges of a respective one of said second minor flaps, each of said pair of edges including one edge which is substantially parallel to a first pair of said upstanding sidewall panels and another edge which is substantially parallel to a second pair of upstanding sidewall panels, whereby said minor flaps provide substantial lateral compressive strength for said carton; and a pair of major flaps hingedly foldably connected to two of said sidewall panels and substantially covering said minor flaps.
Claim 3
Dependent Claim
16 words
The carton according to claim 1 wherein said blank consists of a unitary sheet of material.
Claim 4
Dependent Claim
10 words
The carton according to claim 1 having an open bottom.
Claim 5
Dependent Claim
33 words
The carton according to claim 1 wherein two of said upstanding wall panels include major flaps adapted to form a cover panel for covering substantially said entire carton and all said minor flaps.
Claim 6
Dependent Claim
133 words
A carton formed from a blank of foldable sheet material comprising: first and second pairs of upstanding generally parallel sidewall panels; a first upstanding corner panel foldably hingedly secured intermediate to and adjoined to two of said sidewall panels; one of said two adjoining side wall panels including a first minor flap hingedly foldably secured thereto, said first minor flap including first and second edges respectively parallel to said first and second pairs of sidewall panels; and a second minor flap hingedly foldably secured to said corner panel, said second minor flap including third and fourth edges, said second minor flap adapted to position itself with respect to said first minor flap in the assembled carton whereby said first and third edges and said second and fourth edges are in respective abutting relationship.
Claim 7
Dependent Claim
133 words
A carton formed from a blank of foldable sheet material comprising: first and second pairs of upstanding generally parallel sidewall panels; a first upstanding corner panel foldably hingedly secured intermediate to and adjoined to two of said sidewall panels; one of said two adjoining side wall panels including a first minor flap hingedly foldably secured thereto, said first minor flap including first and second edges respectively parallel to said first and second pairs of sidewall panels; and a second minor flap hingedly foldably secured to said corner panel, said second minor flap including third and fourth edges, said second minor flap adapted to position itself with respect to said first minor flap in the assembled carton whereby said first and third edges and said second and fourth edges are in respective abutting relationship.
Claim 8
Dependent Claim
100 words
The carton according to claim 5 and including a third minor flap hingedly foldably secured to a sidewall panel and including fifth and sixth edges respectively parallel to said first and second pairs of sidewall panels, a second upstanding corner panel generally parallel to said first corner panel and having a fourth minor flap hingedly foldably secured to said second corner panel and including seventh and eighth edges, said fourth minor flap adapted to position itself with respect to said third minor flap whereby said fifth and sixth edges and said seventh and eighth edges are in respective abutting relationship.
Claim 9
Dependent Claim
13 words
The carton according to claim 6 wherein said corner panels are substantially parallel.
Claim 10
Dependent Claim
32 words
The carton according to claim 5 wherein two of said upstanding wall panels include major flaps adapted to form a cover panel for covering substantially said entire carton and said minor flaps.
Claim 11
Dependent Claim
28 words
The carton according to claim 5 wherein portions of said blank sheet are removed, said removed portions separating said abutting edges in the unassembled position of said blank.
References Cited (Backward Citations)
US397980A
Cited
US2733851A
Cited
US1693435A
Cited
US2013691A
Cited
US2517552A
Cited
US2565188A
Cited
US2954152A
Cited
US2967655A
Cited
US3174675A
Cited
FR90192E
Cited
FR1528721A
Cited
US3977594A
Cited
US4146169A
Cited
US4441649A
Cited
US4511080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |