US3522507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable battery and charge control circuit therefor
Assignee: Gulton Industries Inc
•
Filing: 1966-04-28
•
Granted: 1970-08-04
•
Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 Harvey N Seiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:53
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/34; H02J7/35; H01; H01M; H01M10/00; H01M10/34; H01M10/42; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2578027A
Cited
US3005943A
Cited
US3096215A
Cited
US3009981A
Cited
US3080440A
Cited
US3348118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |