US3421068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trickle charge voltage stabilization nickel-cadmium battery
Assignee: General Electric Co
•
Filing: 1966-05-27
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Granted: 1969-01-07
•
Expires: 1986-05-27
Abstract
No abstract record available.
Inventors
- 👤 Charles W Van Marter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:40
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/971; H02J7/975; H02J7/977
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3102222A
Cited
US3148322A
Cited
US3237078A
Cited
US3213345A
Cited
US3264546A
Cited
US3363163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |