Patent US2959768A successfully refreshed from Google Patents.
US2959768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comparator
Assignee: International Business Machines Corp
•
Filing: 1955-10-25
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Granted: 1960-11-08
•
Expires: 1975-10-25
Abstract
No abstract record available.
Inventors
- 👤 Henry J White
- 👤 Charles J Hesner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:04
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2512038A
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US2609143A
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US2615127A
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US2641696A
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US2712898A
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US2596199A
Cited
US2845220A
Cited
US2675538A
Cited
US2785856A
Cited
US2735082A
Cited
US2842663A
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 |