Patent US3102264A successfully refreshed from Google Patents.
US3102264A
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Hybrid pulse-continuous wave doppler radio navigation system
Assignee: General Precision Inc
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Filing: 1961-12-22
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Granted: 1963-08-27
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Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Robert A Flower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60; G01S1/00; G01S1/02; G01S13/06; G01S13/08; G01S13/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A DOPPLER RADIO NAVIGATOR COMPRISING, A MICROWAVE OSCILLATOR, CONTROL MEANS FOR PERIODICALLY VARYING THE FREQUENCY OF THE OSCILLATOR OUTPUT FROM A FIRST TO A SECOND VALUE, MEANS RESPONSIVE TO SAID VARYING OSCILLATOR OUTPUT TO FOR ALTERNATELY DRIVING THE MICROWAVE OSCILLATOR OUTPUT TO A FIRST AND A SECOND PREDETERMINED FREQUENCY, DUPLEXING MEANS FOR CONNECTING THE MICROWAVE OSCILLATOR OUTPUT TO AN ANTENNA AND FOR CONNECTING THE RECEIVED REFLECTED ENERGY FROM SAID ANTENNA TO A MIXING MEANS, MEANS FOR CONNECTING THE MICROWAVE OSCILLATOR OUTPUT TO SAID MIXING MEANS, AND A DOPPLER RECEIVER RESPONSIVE TO THE OUTPUT FROM SAID MIXING MEANS FOR PROVIDING THE VELOCITY OF THE ANTENNA ALONG ITS GROUND TRACK AND DRIFT ANGLE THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |