US2801334A
Expired / Lapsed
US
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Dynamic storage circuit
Assignee: International Business Machines Corp
•
Filing: 1953-04-06
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Granted: 1957-07-30
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Expires: 1973-04-06
Abstract
No abstract record available.
Inventors
- 👤 Genung L Clapper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:53
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/18; G11C11/00; G11C11/21; G11C11/26; G11C11/30; G11C19/20; G11C19/202; H; H03; H03H; H03H11/00; H03H11/02; H03H11/26; H03K; H03K5/00; H03K5/01; H03K5/04; H03K5/05; H03K5/13; H03K5/135; H03K5/15; H03K5/15013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078792A
Cited
US2102371A
Cited
US2195996A
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US2579473A
Cited
US2653187A
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US2644887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |