Patent US2663909A successfully refreshed from Google Patents.
US2663909A
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Production of closure seals by partially curing a cushion material and thereafter shaping and completing the cure
Assignee: Continental Can Co Inc
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Filing: 1950-11-08
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Granted: 1953-12-29
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Expires: 1970-11-08
Abstract
No abstract record available.
Inventors
- 👤 Curtis E Maier
- 👤 Halford E Brockett
- 👤 Ralph A Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:14
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/18; B29C70/00; B29C70/68; B29C70/78; B29C70/80; B65; B65D; B65D41/00; B65D41/02; B65D41/10; B65D41/12; B29C43/32; B29C43/34; B29C2043/3405; B29C2043/3416; B29C2043/3433; B29C43/50; B29C2043/5076; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/56; Y; Y10; Y10S; Y10S264/00; Y10S264/59; Y10S264/60; Y10S425/00; Y10S425/809
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) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |