US2905873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor power devices and method of manufacture
Assignee: RCA Corp
•
Filing: 1956-09-17
•
Granted: 1959-09-22
•
Expires: 1976-09-17
Abstract
No abstract record available.
Inventors
- 👤 Ollendorf Joel
- 👤 Bibby James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/132; H10P; H10P95/00; H10W72/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2759133A
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US2731704A
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US2809332A
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US2751528A
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US2817048A
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US2757439A
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US2762001A
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US2777974A
Cited
US2777101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |