US3476991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inversion layer field effect device with azimuthally dependent carrier mobility
Assignee: Texas Instruments Inc
•
Filing: 1967-11-08
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Granted: 1969-11-04
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Expires: 1987-11-08
Abstract
No abstract record available.
Inventors
- 👤 Jack P Mize
- 👤 Derek Colman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:27
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/40; H10D62/405; H10D84/00; H10D84/80; H10D84/82; H10D84/83; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2994811A
Cited
US3302078A
Cited
US3370995A
Cited
US3378783A
Cited
US3407343A
Cited
US3410132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |