US3376488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-cycle self-regulating battery charger
Assignee: All American Engineering Co
•
Filing: 1966-12-15
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Granted: 1968-04-02
•
Expires: 1986-12-15
Abstract
No abstract record available.
Inventors
- 👤 Robert R Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:14
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)
GB830074A
Cited
US3160805A
Cited
US3147419A
Cited
US3211964A
Cited
US3273038A
Cited
US3305755A
Cited
US3299297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |