US2974236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-electrode semiconductor devices
Assignee: RCA Corp
•
Filing: 1953-03-11
•
Granted: 1961-03-07
•
Expires: 1973-03-11
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:49
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D10/00; H10D84/00; H10D84/60; H10D84/645; H10D88/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1919053A
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US2022968A
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US2595497A
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US2553490A
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US2666814A
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US2597028A
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US2790037A
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US2657360A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |