US3066601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Error checking devices
Assignee: International Business Machines Corp
•
Filing: 1959-12-29
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Granted: 1962-12-04
•
Expires: 1979-12-29
Abstract
No abstract record available.
Inventors
- 👤 Harold E Eden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:31
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/08; G06F; G06F11/00; G06F11/07; G06F11/16; G06F11/1608; G06F11/1616
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2307109A
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US2692551A
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US2776618A
Cited
US2702380A
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US2708267A
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US2831424A
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US2799222A
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US2904781A
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US2918865A
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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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |