US2851615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices and systems
Assignee: RCA Corp
•
Filing: 1953-06-22
•
Granted: 1958-09-09
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 George C Sziklai
- 👤 Gerald B Herzog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
H; H04; H04N; H04N11/00; H04N11/06; H04N11/12; H03; H03C; H03C1/00; H03C1/36; H03D; H03D1/00; H03D1/14; H03D1/18; H03F; H03F3/00; H03F3/04; H03F3/14; H03K; H03K17/00; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/042; H04J3/047; H10; H10D; H10D88/00; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1222440A
Cited
US1919053A
Cited
US2553490A
Cited
US2666150A
Cited
US2702838A
Cited
US2790037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |