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US2907809A
Expired / Lapsed
US
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Sealing joint
Assignee: Union Carbide Corp
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Filing: 1956-09-28
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Granted: 1959-10-06
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Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr James Southworth
- 👤 Orlo W Marsh
- 👤 John P Badger
- 👤 George R Drengler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:39
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M12/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2213429A
Cited
US2724010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |