Patent US3473683A successfully refreshed from Google Patents.
US3473683A
Expired / Lapsed
US
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Closure with molded ring gasket
Assignee: Continental Can Co Inc
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Filing: 1968-08-06
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Granted: 1969-10-21
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Expires: 1988-08-06
Abstract
No abstract record available.
Inventors
- 👤 Donald H Zipper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:38
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/0457; B29; B29C; B29C70/00; B29C70/68; B29C70/78; B29C70/80; B29L; B29L2031/00; B29L2031/56
Claims Analysis
Total Claims: 0
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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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |