US3472712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field-effect device with insulated gate
Assignee: Raytheon Co
•
Filing: 1966-10-27
•
Granted: 1969-10-14
•
Expires: 1986-10-27
Abstract
No abstract record available.
Inventors
- 👤 Robert W Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:04
CPC Classifications
H; H10; H10P; H10P95/00; H01; H01J; H01J37/00; H01J37/30; H01J37/317; H10D; H10D99/00; Y; Y10; Y10S; Y10S148/00; Y10S148/043; Y10S148/052; Y10S148/053; Y10S148/113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563503A
Cited
US2735948A
Cited
US2787564A
Cited
US2989385A
Cited
US2981877A
Cited
US3311756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |