Patent US5213804A successfully refreshed from Google Patents.
Patent US3140487A successfully refreshed from Google Patents.
US3140487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slant range position and velocity determining system
Assignee: Cubic Corp
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Filing: 1959-07-13
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Granted: 1964-07-07
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Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 James R Ford
- 👤 Marshall D Bear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:43
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/583
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ELECTRONIC SYSTEM FOR ACQUIRING INFORMATION ON THE SLANT RANGE VELOCITY OF A MOVING TARGET VEHICLE, SAID SYSTEM COMPRISING: GROUND-BASED MEANS FOR TRANSMITTING A FIRST CARRIER SIGNAL OF A FIRST FREQUENCY TO SAID TARGET VEHICLE; FIRST MEANS ON SAID TARGET VEHICLE FOR RECEIVING SAID FIRST CARRIER SIGNAL, SAID RECEIVED FIRST CARRIER SIGNAL HAVING A MODIFIED FIRST FREQUENCY DUE TO THE SLANT RANGE VELOCITY OF SAID TARGET VEHICLE; SECOND MEANS ON SAID TARGET VEHICLE FOR TRANSMITTING SECOND AND THIRD CARRIER SIGNALS OF SECOND AND THIRD FREQUENCIES, RESPECTIVELY, SAID SECOND AND THIRD FREQUENCIES DIFFERING ABOVE AND BELOW, RESPECTIVELY, SAID MODIFIED FIRST CARRIER SIGNAL IN FREQUENCY BY A FOURTH FREQUENCY; GROUND-BASED RECEIVING MEANS FOR RECEIVING SAID SECOND AND THIRD CARRIER SIGNALS AT MODIFIED SECOND AND THIRD FREQUENCIES, RESPECTIVELY, DUE TO THE SLANT RANGE VELOCITY OF SAID TARGET VEHICLE; MIXING MEANS FOR MIXING
Claim 2
Dependent Claim
139 words
AN ELECTRONIC SYSTEM FOR ACQUIRING INFORMATION ON THE SLANT RANGE VELOCITY OF A MOVING TARGET VEHICLE, SAID SYSTEM COMPRISING: GROUND-BASED MEANS FOR TRANSMITTING A FIRST CARRIER SIGNAL OF A FIRST FREQUENCY TO SAID TARGET VEHICLE; FIRST MEANS ON SAID TARGET VEHICLE FOR RECEIVING SAID FIRST CARRIER SIGNAL, SAID RECEIVED FIRST CARRIER SIGNAL HAVING A MODIFIED FIRST FREQUENCY DUE TO THE SLANT RANGE VELOCITY OF SAID TARGET VEHICLE; SECOND MEANS ON SAID TARGET VEHICLE FOR TRANSMITTING SECOND AND THIRD CARRIER SIGNALS OF SECOND AND THIRD FREQUENCIES, RESPECTIVELY, SAID SECOND AND THIRD FREQUENCIES DIFFERING ABOVE AND BELOW, RESPECTIVELY, SAID MODIFIED FIRST CARRIER SIGNAL IN FREQUENCY BY A FOURTH FREQUENCY; GROUND-BASED RECEIVING MEANS FOR RECEIVING SAID SECOND AND THIRD CARRIER SIGNALS AT MODIFIED SECOND AND THIRD FREQUENCIES, RESPECTIVELY, DUE TO THE SLANT RANGE VELOCITY OF SAID TARGET VEHICLE; MIXING MEANS FOR MIXING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |