Patent US3454844A successfully refreshed from Google Patents.
US3454844A
Expired / Lapsed
US
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Field effect device with overlapping insulated gates
Assignee: Raytheon Co
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Filing: 1966-07-01
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Granted: 1969-07-08
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Expires: 1986-07-01
Abstract
No abstract record available.
Inventors
- 👤 Hans G Dill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:07
CPC Classifications
H; H10; H10D; H10D30/00; H10D30/60; H10D30/611; H10D99/00; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6302; H10P14/6304; H10P14/6306; H10P14/6308; H10P14/6309; H10P14/6322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3333168A
Cited
US3339128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |