US3572575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking paperboard shipping container
Assignee: OI Glass Inc
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Filing: 1969-04-18
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Granted: 1971-03-30
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Expires: 1989-04-18
Abstract
Abstract A self-locking folded paperboard shipping container including interlocking body and end portions wherein the end panels are formed with reversely bent flaps on each side forming an interlocking V to engage inturned portions on said body when said end panels are inserted into the body through an open top flap and pushed into position to close the ends and form a rigid interlocked structure.
Inventors
- 👤 Gus John Dorofachuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:58
CPC Classifications
B; B65; B65D; B65D13/00; B65D13/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
63 words
A self-locking folded paperboard container comprising: body means having inturned portions along both of its ends; and a pair of end closing means formed with reversely bent flaps on each side forming an interlocking V on each side thereof adapted to engage said inturned portions on said body means to close the ends of said body means and form a rigid interlocked structure.
Claim 2
Dependent Claim
63 words
A self-locking folded paperboard container comprising: body means having inturned portions along both of its ends; and a pair of end closing means formed with reversely bent flaps on each side forming an interlocking V on each side thereof adapted to engage said inturned portions on said body means to close the ends of said body means and form a rigid interlocked structure.
Claim 3
Dependent Claim
23 words
A self-locking folded paperboard container as set forth in claim 1 wherein said body means and said end closing means are substantially rectangular.
Claim 4
Dependent Claim
28 words
A self-locking folded paperboard container as set forth in claim 2 wherein said body means includes a pair of side panels, a bottom panel, and a top panel.
Claim 5
Dependent Claim
36 words
A self-locking folded paperboard container as set forth in claim 3 wherein said top panel includes a closing flap adapted to be folded perpendicular to said top panel and attached to one of said side panels.
Claim 6
Dependent Claim
49 words
A self-locking paperboard container as set forth in claim 3 wherein one of said side panels is formed between and integral with said top and bottom panels and the other of said side panels is formed integral with and positioned adjacent to the opposite side of said bottom panel.
Claim 7
Dependent Claim
36 words
A self-locking paperboard container as set forth in claim 5 wherein said top panel includes a closing flap adapted to be folded perpendicular to said top flap and attached to said other of said side panels.
Claim 8
Dependent Claim
66 words
A self-locking paperboard container as set forth in claim 6 wherein the outermost of the reversibly bent flaps on at least one side of each of said end closing means has a tapered lead-in portion to facilitate the positioning of the inturned portions on said top panel thereunder when said top panel is closed and said closing flap attached to said one of said side panels.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |