Patent US2952008A successfully refreshed from Google Patents.
US2952008A
Expired / Lapsed
US
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Assignee: International Business Machines Corp
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Filing: 1957-12-26
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Granted: 1960-09-06
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Expires: 1977-12-26
Abstract
No abstract record available.
Inventors
- 👤 George E Mitchell
- 👤 Charles W Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/01; G06K7/016; G06K7/0163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2512038A
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US2609143A
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US2628346A
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US2760063A
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US2764463A
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US2782398A
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US2793344A
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US2864077A
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US2813259A
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US2898578A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |