US2994810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary emitter transistor
Assignee: Raytheon Co
•
Filing: 1955-11-04
•
Granted: 1961-08-01
•
Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Richard A Gudmundsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
H; H10; H10D; H10D99/00; H10D10/00; H10P; H10P95/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2701281A
Cited
US2672528A
Cited
US2612567A
Cited
US2754431A
Cited
US2801347A
Cited
US2915646A
Cited
US2801348A
Cited
US2847583A
Cited
US2777974A
Cited
US2777101A
Cited
US2929999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |