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US3509544A
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Electrochemical analog random access memory
Assignee: United States Department of the Air Force
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Filing: 1968-09-23
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Granted: 1970-04-28
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Expires: 1988-09-23
Abstract
No abstract record available.
Inventors
- 👤 John P Choisser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:11
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/02; G11C27/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3211968A
Cited
US3017612A
Cited
US3172083A
Cited
US3354439A
Cited
US3305847A
Cited
US3331062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |