Patent US2447676A successfully refreshed from Google Patents.
Patent US2961110A successfully refreshed from Google Patents.
US2961110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closures
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1957-05-14
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Granted: 1960-11-22
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Giles B Cooke
- 👤 William C Rainer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:40
CPC Classifications
B; B65; B65D; B65D53/00; B65D53/04; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/0442
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA508732A
Cited
US1974981A
Cited
US2120461A
Cited
US2706572A
Cited
US2697532A
Cited
US2690255A
Cited
US2768906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |