Patent US3386027A successfully refreshed from Google Patents.
US3386027A
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High voltage converter apparatus having a plurality of serially connected controllable semiconductor devices
Assignee: Westinghouse Electric Corp
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Filing: 1965-09-08
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Granted: 1968-05-28
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Expires: 1985-09-08
Abstract
Abstract High voltage converter apparatus of the type having a plurality of serially connected, controllable semiconductor devices. The converter apparatus includes means for providing a substantially uniform voltage distribution across the devices, and for maintaining the uniform distribution while the devices are being switched. The converter apparatus also includes firing means for switching the devices, using electromagnetic radiation to trigger the firing means.
Inventors
- 👤 Lee A Kilgore
- 👤 Harvey E Spindle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:02
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/08; H02M1/088; H02M1/092; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/493
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3158799A
Cited
US3181003A
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US3229158A
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US3209154A
Cited
US3302094A
Cited
US3321695A
Cited
US3304431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |