US2653180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline storage battery and process for preventing its self-discharge
Assignee: Huntington Alloys Corp
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Filing: 1952-06-07
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Granted: 1953-09-22
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Expires: 1972-06-07
Abstract
No abstract record available.
Inventors
- 👤 Harold W G Hignett
- 👤 Hersch Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; H01M10/30; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |