US3387286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field-effect transistor memory
Assignee: International Business Machines Corp
•
Filing: 1967-07-14
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Granted: 1968-06-04
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Expires: 1987-07-14
Abstract
No abstract record available.
Inventors
- 👤 Robert H Dennard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:05
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/80; H10D84/811; H10D84/813; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403; G11C11/404; H10B; H10B12/00; H10B12/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3025411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |