US2970763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Predetermined pulse selector
Assignee: Unisys Corp
•
Filing: 1957-02-28
•
Granted: 1961-02-07
•
Expires: 1977-02-28
Abstract
No abstract record available.
Inventors
- 👤 Freeman Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
G; G06; G06M; G06M3/00; G06M3/02; G06F; G06F1/00; G06F1/02; G06F1/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2519184A
Cited
US2570306A
Cited
US2564824A
Cited
US2540654A
Cited
US2619282A
Cited
US2665846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |