US2647257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonambiguous cycle matching system
Assignee: Unisys Corp
•
Filing: 1948-01-22
•
Granted: 1953-07-28
•
Expires: 1968-01-22
Abstract
No abstract record available.
Inventors
- 👤 Dean Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:29
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1919556A
Cited
US1877858A
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US2144203A
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US2408773A
Cited
GB630867A
Cited
US2598290A
Cited
SE120663C1
Cited
US2513315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |