US3497791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized battery charger
Assignee: Individual
•
Filing: 1967-08-15
•
Granted: 1970-02-24
•
Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Charles R Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:55
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/96; Y; Y10; Y10S; Y10S320/00; Y10S320/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3009091A
Cited
US3193750A
Cited
US3159755A
Cited
US3114095A
Cited
US3310729A
Cited
US3310724A
Cited
US3315141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |