US3304469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field effect solid state device having a partially insulated electrode
Assignee: RCA Corp
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Filing: 1964-03-03
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Granted: 1967-02-14
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Expires: 1984-03-03
Abstract
No abstract record available.
Inventors
- 👤 Weimer Paul Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:45
CPC Classifications
H; H10; H10D; H10D30/00; H10D30/60; H10D30/67; H10D30/674; H10D30/6755; H10D1/00; H10D1/60; H10D1/62; H10D1/66; H10D8/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
A SOLID STATE FIELD-EFFECT DEVICE COMPRISING: A LAYER OF SEMICONDUCTIVE MATERIAL OF SINGLE CONDUCTIVITY TYPE, A FILM OF SIDE OF SAID SEMICONDUCTIVE LAYER, A FIRST ELECTRODE IN CONTACT WITH SAID SEMICONDUCTIVE LAYER, AND A SECOND ELECTRODE HAVING A PORTION THEREOF IN CONTACT WITH SAID SEMICONDUCTIVE LAYER AND DEFINING WITH SAID FIRST ELECTRODE THE ENDS OF A CURRENT PATH THROUGH SAID SEMICONDUCTIVE LAYER, SAID SECOND ELECTRODE HAVING ANOTHER PORTION THEREOF EXTENDING ADJACENT A PORTION OF SAID CURRENT PATH AND SEPARATED FROM SAID SEMICONDUCTIVE LAYER BY SAID FILM OF HIGH RESISTIVITY MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |