US2985702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deferred action battery
Assignee: Union Carbide Corp
•
Filing: 1957-10-17
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Granted: 1961-05-23
•
Expires: 1977-10-17
Abstract
No abstract record available.
Inventors
- 👤 Jr William G Darland
- 👤 Roswell J Bennett
- 👤 Orville H Bell
- 👤 Charles E Ulrich
- 👤 Russell P Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2403567A
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US2404144A
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US2502723A
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US2441896A
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US2674946A
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US2684988A
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US2787650A
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US2806895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |