Patent US2959351A successfully refreshed from Google Patents.
US2959351A
Expired / Lapsed
US
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Data storage and processing machine
Assignee: International Business Machines Corp
•
Filing: 1955-11-02
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Granted: 1960-11-08
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Expires: 1975-11-02
Abstract
No abstract record available.
Inventors
- 👤 Francis E Hamilton
- 👤 Jr Ernest S Hughes
- 👤 Warren K Lind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:57
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/085; G06F15/00; G06F15/76; G06F15/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2500294A
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US2580768A
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US2604262A
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US2634052A
Cited
GB737863A
Cited
US2657856A
Cited
US2800278A
Cited
US2755459A
Cited
US2679638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |