US2946004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase comparator circuits
Assignee: Unisys Corp
•
Filing: 1956-02-28
•
Granted: 1960-07-19
•
Expires: 1976-02-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:30
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S3/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2114016A
Cited
US2470412A
Cited
US2473542A
Cited
US2513528A
Cited
US2631279A
Cited
US2728907A
Cited
US2741756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |