US3102226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power control circuit
Assignee: FOSTORIA CORP
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Filing: 1961-09-18
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Granted: 1963-08-27
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Henry S Borkovitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:49
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/125; H02H7/127; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; G05F1/445
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
A POWER CONTROL CIRCUIT COMPRISING AN ELECTRICAL VALVE HAVING CURRENT CONDUCTIVE ELECTRODES AND A CONTROL ELECTRODE, CONNECTIONS TO THE CURRENT CONDUCTIVE ELECTRODES TO IMPRESS A PULSATING VOLTAGE THEREACROSS, THE VALVE BECOMING CONDUCTIVE WHEN A PREDETRMINED VOLTAGE IS APPLIED TO THE CONTROL ELECTRODE AND A VOLTAGE OF A PREDETERMINED VALUE IS IMPRESSED ACROSS THE CURRENT CONDUCTING ELECTRODES AND BECOMING NON-CONDUCTIVE WHEN THE VOLTAGE ACROSS THE CURRENT CONDUCTING ELECTRODES IS LESS THAN THE PREDETERMINED VALUE, A VOLTAGE LIMITING DEVICE CONNECTED ACROSS THE CURRENT CONDUCTING ELECTRODES AND BECOMING CONDUCTIVE WHEN THE VOLTAGE THEREACROSS EXCEEDS
References Cited (Backward Citations)
US2875382A
Cited
US3042838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |