US2498814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery charging system
Assignee: Motors Liquidation Co
•
Filing: 1947-03-06
•
Granted: 1950-02-28
•
Expires: 1967-03-06
Abstract
No abstract record available.
Inventors
- 👤 John H Little
- 👤 William J Rady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/44; H02; H02J; H02J7/00; H02J7/02; H02J7/04; H02J7/90; H02J7/971; H02J7/975; H02J7/977; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US991112A
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US1976404A
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US2022874A
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US2354877A
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US2369826A
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US2355488A
Cited
US2431945A
Cited
US2427729A
Cited
US2421523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |