Patent US3386016A successfully refreshed from Google Patents.
US3386016A
Expired / Lapsed
US
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Field effect transistor with an induced p-type channel by means of high work function metal or oxide
Assignee: Sprague Electric Co
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Filing: 1965-08-02
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Granted: 1968-05-28
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Lindmayer Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; H10D; H10D99/00; Y; Y10; Y10S; Y10S148/00; Y10S148/053; Y10S148/106; Y10S148/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |