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US2980832A
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High current npnp switch
Assignee: Westinghouse Electric Corp
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Filing: 1959-06-10
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Granted: 1961-04-18
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Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Frank S Stein
- 👤 Elmer W Torok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:57
CPC Classifications
H; H10; H10D; H10D10/00; H10D18/00; H10D62/00; H10D62/10; H10D62/13; H10D62/17; H10D64/00; H10D64/20; H10D64/27; H10D99/00; H10P; H10P95/00; H10W; H10W42/00; H10W76/00; H10W76/10; H10W76/17; H10W76/60; H10W99/00; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/50; H10W72/541; H10W72/547; H10W72/851; H10W72/874; H10W72/884
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2779877A
Cited
US2910634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |