US4034909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible container
Assignee: Individual
•
Filing: 1975-12-16
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Granted: 1977-07-12
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Expires: 1995-12-16
Abstract
Abstract A collapsible container, formed from a blank of heavy paperboard or cardboard comprising four side walls interconnected with each other, first bottom wall means extending from the lower edges of a pair of the side walls adjacent to each other and inwardly foldable, second bottom wall means extending from the lower edges of another pair of the side walls adjacent to each other, a first score line on the first bottom wall means, a second core line on the second bottom wall means, and reinforcing members disposed on the opposite ends of the side walls. The carton as a whole may be very readily set up or collapsed by unfolding or folding the first and second bottom wall means over along the first and second fold lines. The first and second bottom wall means partially overlie each other to define the base.
Inventors
- 👤 Mitsunori Toda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:28
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/441; B65D5/445; B65D5/448; B65D5/36; B65D5/64; B65D5/66; B65D2313/00; B65D2313/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
190 words
A collapsible container comprising four mutually interconnected rectangular side walls made from paperboard or cardboard; first bottom wall means extending from the lower edges of a first pair of the side walls adjacent to each other, and inwardly foldable, said first bottom wall means being in right angle relation with said first pair of the side walls when said container is erected; second bottom wall means extending from the lower edges of the other, second pair of side walls adjacent to each other, and inwardly foldable, said second bottom wall means being in right angle relation with the second pair of side walls and adapted to lie over said first bottom wall means when said container is erected; a first score line formed on said first bottom wall means to permit the latter to fold between said first pair of the side walls; a second score line formed on said second bottom wall means to permit the latter to fold between said second pair of the side walls; and a plurality of reinforcing members of hard or rigid material disposed along the opposite ends of each of said side walls.
Claim 2
Dependent Claim
190 words
A collapsible container comprising four mutually interconnected rectangular side walls made from paperboard or cardboard; first bottom wall means extending from the lower edges of a first pair of the side walls adjacent to each other, and inwardly foldable, said first bottom wall means being in right angle relation with said first pair of the side walls when said container is erected; second bottom wall means extending from the lower edges of the other, second pair of side walls adjacent to each other, and inwardly foldable, said second bottom wall means being in right angle relation with the second pair of side walls and adapted to lie over said first bottom wall means when said container is erected; a first score line formed on said first bottom wall means to permit the latter to fold between said first pair of the side walls; a second score line formed on said second bottom wall means to permit the latter to fold between said second pair of the side walls; and a plurality of reinforcing members of hard or rigid material disposed along the opposite ends of each of said side walls.
Claim 3
Dependent Claim
40 words
A collapsible container as defined in claim 1 wherein lid flaps are formed at the upper edges of the respective side walls to fold over along said edges and define the lid of the container when the container is erected.
Claim 4
Dependent Claim
64 words
A collapsible container as defined in claim 2 wherein said first bottom wall means are foldably mounted on said first pair of side walls, and consist of bottom flaps mutually interconnected by a connector, and wherein said second bottom wall means are foldably mounted on said second paid of side walls, and consist of another pair of bottom flaps mutually interconnected by another connector.
Claim 5
Dependent Claim
48 words
A collapsible container as defined in claim 3 wherein said four side walls and their respective bottom flaps and lid flaps constitute four panel elements each including one side wall, bottom flap, and lid flap, said reinforcing members functioning to interconnect said side walls of said panel elements.
Claim 6
Dependent Claim
28 words
A collapsible container as defined in claim 4 wherein one of said bottom flaps is dimensioned to have an area substantially equal to the base of the container.
Claim 7
Dependent Claim
40 words
A collapsible container as defined in claim 5 wherein two opposed lid flaps lie atop the other two lid flaps when the container is erected, and have a width equal to half the length of the other two lid flaps.
Claim 8
Dependent Claim
43 words
A collapsible container as defined in claim 6 wherein mutually bondable hook means are disposed on the bottom surfaces of the two lid flaps which lie atop the other two lid flaps, and on the top surfaces of the other two lid flaps.
References Cited (Backward Citations)
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Cited
US1940309A
Cited
US2066753A
Cited
US2761609A
Cited
US2781160A
Cited
US3099379A
Cited
US3251533A
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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) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |