US3543052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device employing igfet in combination with schottky diode
Assignee: AT&T Inc
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Filing: 1967-06-05
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Granted: 1970-11-24
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Expires: 1987-06-05
Abstract
No abstract record available.
Inventors
- 👤 Dawon Kahng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:57
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403; H; H03; H03K; H03K3/00; H03K3/02; H03K3/353; H03K3/356; H10; H10D; H10D30/00; H10D30/60; H10D30/68; H10D30/681; H10D84/00; H10D84/80; H10D84/811
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) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |