US3290677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous wave angle and range determining radar
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1962-12-31
•
Granted: 1966-12-06
•
Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Don M Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:02
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/36; G01S13/74; G01S13/82; G01S13/84; G01S13/86
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
IN COMBINATION, A FIRST STATION AND A SECOND STATION MOVABLE WITH RESPECT TO EACH OTHER, MEANS LOCATED IN SAID FIRST STATION COMPRISING A CONTINUOUS WAVE RADAR TRANSMITTER FOR GENERATING AND TRANSMITTING A FIRST CARRIER SIGNAL AND A FIRST SUBCARRIER SIGNAL TO SAID SECOND STATION, MEANS LOCATED IN SAID SECOND STATION FOR RECEIVING SAID FIRST CARRIER SIGNAL AND SAID FIRST SUBCARRIER SIGNAL AND GENERATING A SECOND CARRIER SIGNAL AND A SECOND SUBCARRIER SIGNAL, SAID MEANS FURTHER INCLUDING MEANS FOR ADJUSTING THE PHASE OF SAID SECOND CARRIER SIGNAL IN RESPONSE TO THE PHASE OF SAID FIRST CARRIER SIGNAL AND MEANS FOR ADJUSTING THE PHASE OF SAID SECOND SUBCARRIER SIGNAL IN RESPONSE TO THE PHASE OF SAID FIRST SUBCARRIER SIGNAL WHEREBY SAID SECOND CARRIER SIGNAL AND SAID SECOND SUBCARRIER SIGNAL HAVE THE SAME PHASE RELATIONSHIP AS SAID RECEIVED FIRST CARRIER SIGNAL AND SAID FIRST SUBCARREIR SIGNAL,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |