US3588670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inverter commutation circuit
Assignee: Individual
•
Filing: 1969-08-07
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Granted: 1971-06-28
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Expires: 1989-08-07
Abstract
Abstract AN INVERTER CIRCUIT INCLUDING A SILICON-CONTROLLED RECTIFIER BRIDGE WHICH REQUIRES INTERRUPTED DC VOLTAGE, AND CIRCUITRY FOR SUPPLYING SUCH INTERRUPTED VOLTAGE. SUCH CIRCUITRY INCLUDES A SILICON-CONTROLLED RECTIFIER INTERRUPTER THROUGH WHICH VOLTAGE FROM A SOURCE OF CONTINUOUS DC VOLTAGE MAY BE SUPPLIED, AND A CAPACITOR WHICH THROUGH CHARGING AND DISCHARGING UNDER THE INFLUENCE OF ANOTHER SILICON-CONTROLLED RECTIFIER BRIDGE CONTROLS THE OPERATING STATE OF THE INTERRUPTER.
Inventors
- 👤 William L King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:38
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/5152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |