US3049578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline storage battery with semipermeable separators
Assignee: Svenska Ackumulator Jungner AB
•
Filing: 1956-03-12
•
Granted: 1962-08-14
•
Expires: 1976-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jonsson Erik
- 👤 Falk Sven Uno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:32
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/34; H01M50/00; H01M50/40; H01M50/463; H01M50/466; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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Cited
US2636059A
Cited
US2776331A
Cited
US2724733A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |