Patent US3339202A successfully refreshed from Google Patents.
US3339202A
Expired / Lapsed
US
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Radiolocation system transmitting sideband signals
Assignee: International Standard Electric Corp
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Filing: 1964-10-05
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Granted: 1967-08-29
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Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Earp Charles William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:15
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/20; G01S1/30; G01S1/306; G01S1/304; G01S3/00; G01S3/02; G01S3/14; G01S5/00; G01S5/0009
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A RATIO NAVIGATION SYSTEM INCLUDING A PLURALITY OF FIXED STATIONS, EACH RADIATING A PAIR OF SIDEBANDS OF A NONRADIATED CARRIER WAVE, THE PAIRS OF SIDEBANDS HAVING DIFFERENT FREQUENCIES FROM EACH OTHER AND THE NON-RADIATED CARRIER WAVES HAVING A FIXED PHASE RELATIONSHIP TO EACH OTHER, AND A MOBILE RECEIVING STATION TO RECEIVE SAID SIDEBANDS, SAID MOBILE RECEIVING STATION HAVING MEANS TO LOCALLY GENERATE A CARRIER WAVE, MEANS COUPLED TO SAID CARRIER WAVE GENERATOR TO CONTROL THE PHASE RELATIONSHIP BETWEEN SAID LOCALLY GENERATED CARRIER WAVE AND THE NONRADIATED CARRIER WAVES AND MEANS COUPLED TO SAID GENERATING MEANS FOR DEMODULATING THE RECEIVED WAVES.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |