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US3744701A Expired / Lapsed US ⏱️ 0.0 years remaining

Heavy duty container

Assignee: Container Corp
•
Filing: 1972-06-01
•
Granted: 1973-07-10
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Expires: 1992-06-01
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Abstract

Abstract A heavy duty container is formed from cut and scored paperboard sheet material and comprises first and second scored blanks each including main and side foldably connected panel elements with auxiliary panel elements foldably connected to each other. The auxiliary elements are foldable to position to define a tube with the side panel and having a double thickness wall therewith. The cut and scored blanks are placed and secured in position with respect to each other to define three tubes with the endmost of the tubes provided with double thickness side and end walls. A closure structure is provided for at least one of the soconnected tubes, and the tubes may be provided with flaps to provide additional thickness of material at the lower end of the container to cause same to be especially resistant to flowable materials within the container. The center of the three tubes may be provided with a liner so that it also has double thickness walls.

Inventors

  • 👤 J Taylor

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 10:08
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/32; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/4804

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 149 words
A heavy duty container formed from paperboard sheet material and comprising: a. first and second cut and scored blanks each including: i. main and side foldably connected panel elements; ii. auxiliary panel elements foldably connected to each other and to said side panel element; iii. said auxiliary panel elements being foldable to and secured in position to define a tube with said side panel element and forming a double thickness wall of said tube with said side panel element; b. said cut and scored blanks when so formed being placed and secured in position with respect to each other so that the tube formed from one of said blanks is placed in position on the main panel of the other of said blanks to define three tubes with the endmost of said tubes having exposed double thickness side and end walls; c. a closure structure for said connected tubes.
Claim 2
Dependent Claim 149 words
A heavy duty container formed from paperboard sheet material and comprising: a. first and second cut and scored blanks each including: i. main and side foldably connected panel elements; ii. auxiliary panel elements foldably connected to each other and to said side panel element; iii. said auxiliary panel elements being foldable to and secured in position to define a tube with said side panel element and forming a double thickness wall of said tube with said side panel element; b. said cut and scored blanks when so formed being placed and secured in position with respect to each other so that the tube formed from one of said blanks is placed in position on the main panel of the other of said blanks to define three tubes with the endmost of said tubes having exposed double thickness side and end walls; c. a closure structure for said connected tubes.
Claim 3
Dependent Claim 31 words
A container according to claim 1 wherein said auxiliary panel elements are provided with flaps foldable to position to provide a bottom closure for the endmost of said row of tubes.
Claim 4
Dependent Claim 27 words
A container according to claim 1 wherein said center of said tubes is provided with a liner providing a double thickness wall for all of said tubes.
Claim 5
Dependent Claim 34 words
A container according to claim 3 wherein said liner is provided with flaps foldable to position to provide a bottom closure for said center tube to provide bottom closures for all of said tubes.
Claim 6
Dependent Claim 47 words
A container according to claim 1 wherein said main and side panel elements are provided with flaps foldable against said main and side panel elements and lie between the same and said closure structure to provide a four-ply wall thickness at the bottom portions of said container.

References Cited (Backward Citations)

US2734676A Cited
US1911339A Cited
US2729384A Cited
US2968397A Cited
US3058644A Cited
US3252646A Cited
US3542991A Cited
US3425615A Cited
US3628718A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-07-09 1977-01-08 1977-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-09 1981-01-08 1981-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-09 1985-01-08 1985-07-10 $7700.00 Window Closed / Lapsed

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