US2914595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-depolarized battery
Assignee: Union Carbide Corp
•
Filing: 1956-10-08
•
Granted: 1959-11-24
•
Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 Jr William G Darland
- 👤 Maurice T Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M12/065; H01M12/08; H01M12/085; H01M6/00; H01M6/30; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2576266A
Cited
US2572296A
Cited
US2615931A
Cited
US2639306A
Cited
US2692905A
Cited
US2684990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |