US2666091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric storage battery for use in extreme climates
Assignee: Individual
•
Filing: 1951-04-12
•
Granted: 1954-01-12
•
Expires: 1971-04-12
Abstract
No abstract record available.
Inventors
- 👤 Emmet L Martin
- 👤 Howard H Agee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:19
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/60; H01M10/65; H01M10/658; H01M10/61; H01M10/615; H01M10/655; H01M10/6551; H01M10/6556; H01M10/656; H01M10/6567; H01M10/6568; H01M10/613; H01M10/62; H01M10/625; H01M10/63; H01M10/637; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7724
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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |