US2889673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device
Assignee: Individual
•
Filing: 1955-10-24
•
Granted: 1959-06-09
•
Expires: 1975-10-24
Abstract
No abstract record available.
Inventors
- 👤 Louis B Rockland
- 👤 Lawrence F Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:16
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B31/06; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/344; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C65/18; B29C65/24; B29C65/30; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/70; B29C66/71
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1437916A
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US1437917A
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US1675208A
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US2094753A
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US2281187A
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Cited
US2540120A
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US2634562A
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US2672268A
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US2649234A
Cited
US2691474A
Cited
US2751732A
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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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |