Patent US2925555A successfully refreshed from Google Patents.
US3333168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unipolar transistor having plurality of insulated gate-electrodes on same side
Assignee: RCA Corp
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Filing: 1966-08-17
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Granted: 1967-07-25
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Expires: 1986-08-17
Abstract
No abstract record available.
Inventors
- 👤 Steven R Hofstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:08
CPC Classifications
H; H10; H10D; H10D30/00; H10D30/60; H10D30/611; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; C; C22; C22C; C22C21/00; C22C21/12; F; F17; F17C; F17C1/00; F17C1/14; H10D99/00; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6302; H10P14/6304; H10P14/6306; H10P14/6308; H10P14/6309; H10P14/6322; H10P14/6326; H10P14/6328; H10P14/6334; H10P14/65; H10P14/6516; H10P14/6529; H10P14/69; H10P14/692; H10P14/6921; H10P14/6922; H10P14/6923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A FIELD-EFFECT TRANSISTOR COMPRISING A BODY OF SEMICONDUCTOR MATERIAL HAVING A SURFACE, LAYER OF INSULATING MATERIAL ON SAID SURFACE, A CHARGE CARRIER CHANNEL IN SAID BODY ADJACENT TO AND EXTENDING SUBSTANTIALLY PARALLEL TO SAID SURFACE, A SOURCE CONNECTED TO ONE END OF SAID CHANNEL, A DRAIN CONNECTED TO THE OTHER END OF SAID CHANNEL, A PLURALITY OF CONTINUOUS GATE ELECTRODES ON SAID LAYER OF INSULATING MATERIAL AND HAVING PORTIONS ADJACENT TO AND
Claim 2
Dependent Claim
72 words
A FIELD-EFFECT TRANSISTOR COMPRISING A BODY OF SEMICONDUCTOR MATERIAL HAVING A SURFACE, LAYER OF INSULATING MATERIAL ON SAID SURFACE, A CHARGE CARRIER CHANNEL IN SAID BODY ADJACENT TO AND EXTENDING SUBSTANTIALLY PARALLEL TO SAID SURFACE, A SOURCE CONNECTED TO ONE END OF SAID CHANNEL, A DRAIN CONNECTED TO THE OTHER END OF SAID CHANNEL, A PLURALITY OF CONTINUOUS GATE ELECTRODES ON SAID LAYER OF INSULATING MATERIAL AND HAVING PORTIONS ADJACENT TO AND
References Cited (Backward Citations)
FR1037293A
Cited
US3258663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |