US3538415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast battery charger
Assignee: Texas Instruments Inc
•
Filing: 1969-10-17
•
Granted: 1970-11-03
•
Expires: 1989-10-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:19
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/971; H02J7/975; H02J7/977; Y; Y10; Y10S; Y10S320/00; Y10S320/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2967988A
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US3121837A
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US3241028A
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US3281638A
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US3292071A
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US3310724A
Cited
US3341764A
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US3267288A
Cited
US3457489A
Cited
US3376488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |