US2970767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-station phase comparison
Assignee: Unisys Corp
•
Filing: 1957-06-24
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Granted: 1961-02-07
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Expires: 1977-06-24
Abstract
No abstract record available.
Inventors
- 👤 Norman J Zabb
- 👤 Herbert W Bomzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:19
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/22; G01; G01S; G01S5/00; G01S5/02; G01S5/06; G01S2205/00; G01S2205/01; G01S2205/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |