Patent US2972092A successfully refreshed from Google Patents.
US2972092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices
Assignee: RCA Corp
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Filing: 1959-08-11
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Granted: 1961-02-14
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Expires: 1979-08-11
Abstract
No abstract record available.
Inventors
- 👤 Nelson Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:06
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10D; H10D84/00; H10D84/40; H10D84/401; H10D84/403; H10D99/00; H10P; H10P95/00; H10W74/00; H10W74/40; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/50; H10W72/531; H10W72/536; Y; Y10; Y10S; Y10S148/00; Y10S148/107
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) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |