US2981931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stored address memory
Assignee: International Business Machines Corp
•
Filing: 1959-06-04
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Granted: 1961-04-25
•
Expires: 1979-06-04
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:46
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014; G11C11/06021; G11C11/06028; G11C11/06035; G06; G06F; G06F9/00; G06F9/06; G06F9/22; G06F9/26; G06F9/262; G06F9/264; G06F9/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2800277A
Cited
US2913706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |