Patent US3924774A successfully refreshed from Google Patents.
US3924774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for containers
Assignee: Individual
•
Filing: 1972-10-11
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Granted: 1975-12-09
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Expires: 1992-10-11
Abstract
Abstract A closure for containers which includes a disc of relatively air impervious resilient material of a desired peripheral configuration and support means including a handle disposed centrally of said disc. The disc is deformable upon insertion in a container to conform with the configuration thereof and seal the container and means are included to facilitate removal of the closure from the container.
Inventors
- 👤 John H Donnelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:58
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24; B65D81/245; B65D43/00; B65D43/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
A removable closure for containers comprising a disc of relatively air-impervious resilient deflectable material having a selected peripheral configuration, a central relatively rigid support overlying said disc and secured to the disc centrally thereof, the area of said support being smaller than the area of said disc so that the edges of said disc can deflect relative to the edges of said support and a handle secured to and extending from said closure whereby said closure upon being inserted within a container will cause the edge of said disc to deflect upwardly and conform to the configuration of the container, said disc including at least one opening extending therethrough, said opening underlying the edge of said support and being normally closed thereby, said disc upon being deflected downwardly by removal of the closure from the container opens said opening to permit the flow of air therethrough.
Claim 2
Dependent Claim
146 words
A removable closure for containers comprising a disc of relatively air-impervious resilient deflectable material having a selected peripheral configuration, a central relatively rigid support overlying said disc and secured to the disc centrally thereof, the area of said support being smaller than the area of said disc so that the edges of said disc can deflect relative to the edges of said support and a handle secured to and extending from said closure whereby said closure upon being inserted within a container will cause the edge of said disc to deflect upwardly and conform to the configuration of the container, said disc including at least one opening extending therethrough, said opening underlying the edge of said support and being normally closed thereby, said disc upon being deflected downwardly by removal of the closure from the container opens said opening to permit the flow of air therethrough.
Claim 3
Dependent Claim
30 words
A removable closure for containers according to claim 1 wherein said support includes a plate underlying said disc and means extending through said disc joining said plate to said support.
Claim 4
Dependent Claim
47 words
A removable closure for containers according to claim 2 wherein said second plate is smaller in area than said overlying plate and said valving means includes a passageway formed through said disc at a point beyond the periphery of said second plate and underlying said overlying plate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |