US3090950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low altitude doppler system
Assignee: General Precision Inc
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Filing: 1960-08-19
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Granted: 1963-05-21
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Expires: 1980-08-19
Abstract
No abstract record available.
Inventors
- 👤 Robert A Flower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:01
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A DOPPLER RADAR SYSTEM COMPRISING, AN AIRCRAFT MICROWAVE TRANSMITTER-RECEIVER-ANTENNA EMITTING ENERGY BEAMED AT A TARGET AND RECEIVING DOPPLER INFORMATION, TRACKING AND CONVERSION MEANS FOR CONVERTING DOPPLER INFORMATION INTO NAVIGATIONAL DATA, A SECOND ANTENNA AND RECEIVER POSITIONED FOR RECEIVING ONLY THE ECHOES OF SAID ENGERGY FROM SAID TARGET AND EMITTING DOPPLER INFORMATION, AND SWITCH MEANS OPERATED BY THE OUTPUT SIGNAL OF SAID SECOND ANTENNA AND RECEIVER, SAID SWITCH MEANS WHEN UNOPERATED CONNECTING SAID TRANSMITTER-RECEIVER-ANTENNA TO SAID TRACKING AND CONVERSTION MEANS AND WHEN OPERATED CONNECTED SAID SECOND ANTENNA AND RECEIVER TO SAID TRACKING AND CONVERSION MEANS.
Claim 2
Dependent Claim
94 words
A DOPPLER RADAR SYSTEM COMPRISING, AN AIRCRAFT MICROWAVE TRANSMITTER-RECEIVER-ANTENNA EMITTING ENERGY BEAMED AT A TARGET AND RECEIVING DOPPLER INFORMATION, TRACKING AND CONVERSION MEANS FOR CONVERTING DOPPLER INFORMATION INTO NAVIGATIONAL DATA, A SECOND ANTENNA AND RECEIVER POSITIONED FOR RECEIVING ONLY THE ECHOES OF SAID ENGERGY FROM SAID TARGET AND EMITTING DOPPLER INFORMATION, AND SWITCH MEANS OPERATED BY THE OUTPUT SIGNAL OF SAID SECOND ANTENNA AND RECEIVER, SAID SWITCH MEANS WHEN UNOPERATED CONNECTING SAID TRANSMITTER-RECEIVER-ANTENNA TO SAID TRACKING AND CONVERSTION MEANS AND WHEN OPERATED CONNECTED SAID SECOND ANTENNA AND RECEIVER TO SAID TRACKING AND CONVERSION MEANS.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |