US2914684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor phase detector
Assignee: Collins Radio Co
•
Filing: 1957-03-18
•
Granted: 1959-11-24
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Warren O Essler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:56
CPC Classifications
G; G01; G01R; G01R25/00; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2486776A
Cited
US2713665A
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US2795762A
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FR1125813A
Cited
US2846652A
Cited
US2780725A
Cited
US2850236A
Cited
US2808990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |