US3132339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sideband cancellation system
Assignee: Raytheon Co
•
Filing: 1961-01-03
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Granted: 1964-05-05
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Boughnou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:32
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/536; H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/50; H04B1/52; H04B1/525
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
IN COMBINATION, MEANS FOR PRODUCING A CARRIER SIGNAL HAVING SIDEBAND FREQUENCIES DISPLACED ABOVE AND BELOW THE FREQUENCY OF SAID CARRIER AND A SINGLE SIDEBAND DOPPLER SIGNAL, MEANS FOR PROVIDING A REFERENCE SIGNAL OF PREDETERMINED PHASE WITH RESPECT TO SAID CARRIER SIGNAL, MEANS FOR MODULATING SAID CARRIER SIGNAL AND SIDEBANDS WITH SAID REFERENCE SIGNAL TO CANCEL ONE SIDEBAND WITH THE OTHER OF SAID SIDEBANDS, AND MEANS FOR EXTRACTING FROM SAID CARRIER SIGNAL SAID SINGLE SIDEBAND DOPPLER SIGNAL.
References Cited (Backward Citations)
US2896162A
Cited
US3021521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |