US2754455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power Transistors
Assignee: RCA Corp
•
Filing: 1952-11-29
•
Granted: 1956-07-10
•
Expires: 1972-11-29
Abstract
No abstract record available.
Inventors
- 👤 Jacques I. Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:54
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/47; H10D; H10D99/00; H10W40/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2162740A
Cited
US2189617A
Cited
US1797587A
Cited
US2143919A
Cited
US2179293A
Cited
US2502479A
Cited
US2644852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |