Patent US3050717A successfully refreshed from Google Patents.
US3050717A
Expired / Lapsed
US
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Computer shift control circuits
Assignee: Unisys Corp
•
Filing: 1956-08-07
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Granted: 1962-08-21
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Expires: 1976-08-07
Abstract
No abstract record available.
Inventors
- 👤 George G Hoberg
- 👤 John R Van Andel
- 👤 Edward W Veitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:47
CPC Classifications
G; G11; G11C; G11C19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2609143A
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US2716159A
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US2845609A
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US2770797A
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FR1084147A
Cited
GB749836A
Cited
US2718356A
Cited
US2954166A
Cited
US2729809A
Cited
US2793344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |