US3471716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power semiconducior gating circuit
Assignee: General Electric Co
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Filing: 1966-12-08
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Granted: 1969-10-07
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Expires: 1986-12-08
Abstract
Abstract A gating circuit for switching devices such as power SCR's which provides a pulse output of desirable quality to insure turn-on of the SCR's under all conditions. In addition, the circuit provides positive, regenerative and independent control of turn-on and turn-off of the pulse output.
Inventors
- 👤 Edward H Dinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:12
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/722; H03K17/723; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/5152; H02M7/5155; H03K3/00; H03K3/02; H03K3/335; H03K3/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |