US2840799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Very rapid access memory for electronic computers
Assignee: Individual
•
Filing: 1952-08-08
•
Granted: 1958-06-24
•
Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:55
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2002219A
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US2208655A
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US2470303A
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US2518405A
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US2480795A
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US2514054A
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US2584866A
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US2691151A
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US2582480A
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US2720642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |