US3680771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure device for containers
Assignee: CONTINENTAL GROUP OF CANADA Inc
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Filing: 1970-04-01
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Granted: 1972-08-01
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Expires: 1990-04-01
Abstract
Abstract A container closure formed by a pair of panels in side-by-side relationship, a rigid projection on one of the panels and a clip adapted to cooperate with the ridge and panels to hold the panels in closed position with the rigid projection tending to prevent withdrawal of the clip.
Inventors
- 👤 Ronald L Blunsdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:32
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/06; B65D5/067; B65D5/069
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
128 words
In a container, a pair of panels each having a free edge, a rigid projection extending substantially longitudinally of and formed on the outer surface of one of said panels remote from the free edge of said one panel, said rigid projection having a latching face substantially parallel to said free edge, a flap foldably connected to the other of said two panels and folded into overlying relationship with said one panel and wherein said rigid projection is positioned between said flap and said one panel, a substantially U-shaped resilient clip having a pair of legs embracing said pair of panels and flap, at least one of said legs terminating in an inwardly directed flange, said flange being urged by said resilient leg to engage said latching face.
Claim 2
Dependent Claim
128 words
In a container, a pair of panels each having a free edge, a rigid projection extending substantially longitudinally of and formed on the outer surface of one of said panels remote from the free edge of said one panel, said rigid projection having a latching face substantially parallel to said free edge, a flap foldably connected to the other of said two panels and folded into overlying relationship with said one panel and wherein said rigid projection is positioned between said flap and said one panel, a substantially U-shaped resilient clip having a pair of legs embracing said pair of panels and flap, at least one of said legs terminating in an inwardly directed flange, said flange being urged by said resilient leg to engage said latching face.
Claim 3
Dependent Claim
32 words
A container as claimed in claim 1, wherein said rigid projection is an elongated bead of plastic material adhered to said outer surface remote from the free edge of said one panel.
Claim 4
Dependent Claim
20 words
A container as defined in claim 1, wherein said rigid projection extends substantially the full length of said one panel.
Claim 5
Dependent Claim
128 words
In a container, a pair of panels each having a free edge, a rigid projection extending substantially longitudinally of and formed on the outer surface of one of said panels remote from the free edge of said one panel, said rigid projection having a latching face substantially parallel to said free edge, a flap foldably connected to the other of said two panels and folded into overlying relationship with said one panel and wherein said rigid projection is positioned adjacent the free edge of said flap, a substantially U-shaped resilient clip having a pair of legs embracing said pair of panels and flap, at least one of said legs terminating in an inwardly directed flange, said flange being urged by said resilient leg to engage said latching face.
Claim 6
Dependent Claim
128 words
In a container, a pair of panels each having a free edge, a rigid projection extending substantially longitudinally of and formed on the outer surface of one of said panels remote from the free edge of said one panel, said rigid projection having a latching face substantially parallel to said free edge, a flap foldably connected to the other of said two panels and folded into overlying relationship with said one panel and wherein said rigid projection is positioned adjacent the free edge of said flap, a substantially U-shaped resilient clip having a pair of legs embracing said pair of panels and flap, at least one of said legs terminating in an inwardly directed flange, said flange being urged by said resilient leg to engage said latching face.
Claim 7
Dependent Claim
32 words
A container as claimed in claim 4, wherein said rigid projection is an elongated bead of plastic material adhered to said outer surface remote from the free edge of said one panel.
Claim 8
Dependent Claim
20 words
A container as defined in claim 4 wherein said rigid projection extends substantially the full length of said one panel.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |