Patent US3113308A successfully refreshed from Google Patents.
US3113308A
Expired / Lapsed
US
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Apparatus for measuring doppler frequency differences
Assignee: General Precision Inc
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Filing: 1956-06-18
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Granted: 1963-12-03
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Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 Stavis Gus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:20
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A SELF-CONTAINED AIRCRAFT DOPPLER SYSTEM FOR MEASURING AN OPERATIONAL QUANTITY COMPRISING, ANTENNA MEANS EMITTING TWO MICROWAVE BEAMS IN NEARLY THE SAME DIRECTION IN SPACE, SAID BEAMS HAVING PARTS OF THEIR CROSS-SECTIONAL AREAS IN COMMON, A TRANSMITTER ENERGIZING SAID ANTENNA MEANS, A RECEIVER ACTUATED FROM SAID ANTENNA MEANS AND EMITTING TWO SIGNALS CONTAINING DOPPLER DATA FROM THE COMMON PORTIONS OF SAID TWO BEAMS RESPECTIVELY, AND MEANS ENERGIZED BY SAID TWO SIGNALS FOR FINDING A SINGLE FREQUENCY REPRESENTATIVE OF THE FREQUENCIES OF SAID TWO SIGNALS AND FOR EMITTING AN OUTPUT SIGNAL REPRESENTATIVE OF THE SINGLE FREQUENCY, SAID OUTPUT SIGNAL BEING AN ANALOG OF SAID OPERATIONAL QUANTITY TO BE MEAS-
Claim 2
Dependent Claim
107 words
A SELF-CONTAINED AIRCRAFT DOPPLER SYSTEM FOR MEASURING AN OPERATIONAL QUANTITY COMPRISING, ANTENNA MEANS EMITTING TWO MICROWAVE BEAMS IN NEARLY THE SAME DIRECTION IN SPACE, SAID BEAMS HAVING PARTS OF THEIR CROSS-SECTIONAL AREAS IN COMMON, A TRANSMITTER ENERGIZING SAID ANTENNA MEANS, A RECEIVER ACTUATED FROM SAID ANTENNA MEANS AND EMITTING TWO SIGNALS CONTAINING DOPPLER DATA FROM THE COMMON PORTIONS OF SAID TWO BEAMS RESPECTIVELY, AND MEANS ENERGIZED BY SAID TWO SIGNALS FOR FINDING A SINGLE FREQUENCY REPRESENTATIVE OF THE FREQUENCIES OF SAID TWO SIGNALS AND FOR EMITTING AN OUTPUT SIGNAL REPRESENTATIVE OF THE SINGLE FREQUENCY, SAID OUTPUT SIGNAL BEING AN ANALOG OF SAID OPERATIONAL QUANTITY TO BE MEAS-
References Cited (Backward Citations)
US3045232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |