US2903496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline accumulator
Assignee: Individual
•
Filing: 1954-09-16
•
Granted: 1959-09-08
•
Expires: 1974-09-16
Abstract
No abstract record available.
Inventors
- 👤 Vogt Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:38
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/80; H01M4/801; H01M4/803; D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; D21H25/00; D21H25/08; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; H01M10/00; H01M10/24; H01M10/28; H01M10/281; H01M4/24; H01M50/00; H01M50/10; H01M50/172; H01M50/174; H01M50/176; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/429; H01M50/50; H01M50/531; H01M50/54; H01M2004/026; H01M2004/027; H01M2300/00; H01M2300/0002; H01M2300/0014; H01M4/36; H01M4/48; H01M4/52; H01M6/00; H01M6/04; H01M6/06; H01M6/10; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1467240A
Cited
US2256105A
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US2543137A
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US2571927A
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US2602843A
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US2708211A
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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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |