US3090902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control circuit utilizing a half wave magnetic amplifier
Assignee: Fidelity Instrument Corp
•
Filing: 1960-07-25
•
Granted: 1963-05-21
•
Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:43
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/30; H02P7/305; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735060A
Cited
US2558094A
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US2716726A
Cited
FR1048540A
Cited
US2652525A
Cited
US2807768A
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US3024405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |