Patent US3658237A successfully refreshed from Google Patents.
US3658237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure
Assignee: ROLPH CLARK STONE Ltd
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Filing: 1970-06-24
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Granted: 1972-04-25
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Expires: 1990-06-24
Abstract
Abstract A collapsible container having a body with foldable side walls and a closure with foldable side walls. The body and closure have cooperating tab and abutment means respectively to lock the closure to the body. The abutment means on the closure are biased to a locking position by being located adjacent fold line on the closure side walls.
Inventors
- 👤 Karl Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:06
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/36; B65D5/3607; B65D5/3635; B65D5/3642
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
226 words
A collapsible paperboard container having a closure, the container having bottom and side walls, a closure for the container, the closure including a main body panel and side panels, first means in the container permitting the side walls to be folded to lie substantially adjacent the bottom wall, second means in the closure permitting the side panels to be folded to lie substantially adjacent the main body panel, cooperating first and second locking means on at least one of the side walls and at least one of the panels respectively, said first locking means comprising at least one tab extending from one of said side walls when the container is in a set-up condition, said second locking means comprising at least one abutment means carried on one side panel overlying at least a portion of the second means when the closure is in a set-up condition, the tab and abutment means cooperating when said closure and container are in a set-up condition and said closure closes said container, to lock the closure, said container including a safety flap connected to a free edge of aid one side wall, said safety flap extending inwardly over the bottom wall of the container and said tab extending outwardly away from the bottom wall with the container in a set-up condition, said tab comprising an extension of the safety flap.
Claim 2
Dependent Claim
226 words
A collapsible paperboard container having a closure, the container having bottom and side walls, a closure for the container, the closure including a main body panel and side panels, first means in the container permitting the side walls to be folded to lie substantially adjacent the bottom wall, second means in the closure permitting the side panels to be folded to lie substantially adjacent the main body panel, cooperating first and second locking means on at least one of the side walls and at least one of the panels respectively, said first locking means comprising at least one tab extending from one of said side walls when the container is in a set-up condition, said second locking means comprising at least one abutment means carried on one side panel overlying at least a portion of the second means when the closure is in a set-up condition, the tab and abutment means cooperating when said closure and container are in a set-up condition and said closure closes said container, to lock the closure, said container including a safety flap connected to a free edge of aid one side wall, said safety flap extending inwardly over the bottom wall of the container and said tab extending outwardly away from the bottom wall with the container in a set-up condition, said tab comprising an extension of the safety flap.
Claim 3
Dependent Claim
40 words
A collapsible container as claimed in claim 1, wherein the second means comprise two fold lines in said one side panel, said fold lines dividing the one side panel into two triangular corner sections and an elongated, trapezoidal, main section.
Claim 4
Dependent Claim
49 words
A collapsible container as claimed in claim 2, wherein the abutment means comprise at least one flap lying adjacent said one said panel, one portion of said flap adhered to one of said triangular sections and the remaining portion freely extending over an adjacent portion of said Main section.
Claim 5
Dependent Claim
38 words
A collapsible container as claimed in claim 3, wherein said one flap has a free upper edge forming an abutment edge which extends substantially parallel to the main body panel but is spaced downwardly therefrom a slight distance.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |