US3405341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate electrode controlled battery charger circuit
Assignee: Zenith Electronics LLC
•
Filing: 1965-11-26
•
Granted: 1968-10-08
•
Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Buchowski Roman
- 👤 Buch Roman
- 👤 Louis L Kocsis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:34
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/94; H02J7/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3106665A
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US3009091A
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US2999969A
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US3201681A
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US3157870A
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US3195033A
Cited
US3310729A
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US3321692A
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US3305755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |