US2991324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline storage battery
Assignee: Individual
•
Filing: 1954-03-18
•
Granted: 1961-07-04
•
Expires: 1974-03-18
Abstract
No abstract record available.
Inventors
- 👤 Vogt Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:47
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/80; H01M4/801; H01M4/803; H01M10/00; H01M10/34; H01M4/24; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/423; H01M50/44; H01M2004/026; H01M2004/027; H01M2004/028; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131592A
Cited
US2361533A
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US2561943A
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US2594710A
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US2651669A
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US2544112A
Cited
US2677006A
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US2642469A
Cited
US2646455A
Cited
US2672494A
Cited
US2708212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |