US2905836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices and systems
Assignee: RCA Corp
•
Filing: 1955-07-27
•
Granted: 1959-09-22
•
Expires: 1975-07-27
Abstract
No abstract record available.
Inventors
- 👤 Edward W Herold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
H; H10; H10D; H10D99/00; H03; H03F; H03F3/00; H03F3/189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2569347A
Cited
US2623103A
Cited
US2691073A
Cited
US2655610A
Cited
US2778956A
Cited
US2838617A
Cited
US2735948A
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 |