Patent US3858745A successfully refreshed from Google Patents.
US3858745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box wall fasteners
Assignee: Nosco Plastics Inc
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Filing: 1973-08-23
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Granted: 1975-01-07
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Expires: 1993-08-23
Abstract
Abstract A box which can be injection molded flat, erected in the field, and when empty knocked down for return shipment. Features include improved structure for holding the parts assembled and for withstanding the stresses of handling, shipping and storage.
Inventors
- 👤 Harold S Cloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:43
CPC Classifications
B; B65; B65D; B65D11/00; B65D11/18; B65D11/1833; B65D1/00; B65D1/22; B65D1/225
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
A box comprising first and second panels transverse to each other, the first panel having an edge transverse to and abutting a surface of the second panel, said first panel edge having a flexible projection with a cam faced head extending through to the opposite surface of the second panel, said second panel having a slot receiving the projection and a tab with a free end at one side of the slot and with the opposite end of the tab joined to said second panel and the sides of the tab free to deflect relative to said second panel, said head extending through said slot and deflecting said tab, a stop on said opposite surface of said second panel, a shoulder on one side of the head engaging said first end of the tab with the tab in the deflected position, and a shoulder on the opposite side of the head engaging said stop.
Claim 2
Dependent Claim
154 words
A box comprising first and second panels transverse to each other, the first panel having an edge transverse to and abutting a surface of the second panel, said first panel edge having a flexible projection with a cam faced head extending through to the opposite surface of the second panel, said second panel having a slot receiving the projection and a tab with a free end at one side of the slot and with the opposite end of the tab joined to said second panel and the sides of the tab free to deflect relative to said second panel, said head extending through said slot and deflecting said tab, a stop on said opposite surface of said second panel, a shoulder on one side of the head engaging said first end of the tab with the tab in the deflected position, and a shoulder on the opposite side of the head engaging said stop.
Claim 3
Dependent Claim
28 words
The box of claim 1 in which said stop comprises another tab like the first tab with its free end presented to the opposite side of the slot.
Claim 4
Dependent Claim
13 words
The box of claim 2 in which said first panel is a partition.
Claim 5
Dependent Claim
13 words
The box of claim 1 in which said first panel is a partition.
Claim 6
Dependent Claim
21 words
The box of claim 1 in which said stop is on a rib on said opposite surface of said second panel.
Claim 7
Dependent Claim
18 words
The box of claim 5 in which said flexible projection is held against said rib by said tab.
References Cited (Backward Citations)
US3390806A
Cited
US3478722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |