Patent US3482152A successfully refreshed from Google Patents.
US3482152A
Expired / Lapsed
US
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Semiconductor devices having a field effect transistor structure
Assignee: US Philips Corp
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Filing: 1967-05-01
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Granted: 1969-12-02
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Expires: 1987-05-01
Abstract
No abstract record available.
Inventors
- 👤 Alfons Matthijs Reinier Iersel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:58
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/111; H03; H03F; H03F1/00; H03F1/08; H03F1/14; H10D84/00; H10D84/01; H10D84/80; H10D84/87; H10W; H10W20/00; H10W20/40; H10W20/482; H10W20/484; H10W72/00; H10W72/90; H10W72/50; H10W72/531; H10W72/5363; H10W72/59; H10W72/931; H10W72/932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3373323A
Cited
US3414740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |