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US3254341A Expired / Lapsed US ⏱️ 0.0 years remaining

Systems for calculating the coordinates of a point at the surface of the earth

Assignee: Thales SA
•
Filing: 1962-10-17
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Granted: 1966-05-31
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Expires: 1982-10-17
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Abstract

No abstract record available.

Inventors

  • 👤 Broussaud Georges

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 20:01
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/02; G01S11/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 142 words
A DEVICE FOR DETERMINING THE COORDINGATES OF A VEHICLE AT THE SURFACE OF THE EARTH COMPRISING: CARRIED BY AN ARTIFICAL SATELLITE, A TRANSMITTER FOR GENERATING ULTRA-HIGH FREQUENCY ENERGY, A FIRST STABILIZED CLOCK FOR MODULATING AND CONTROLLING SAID TRANSMITTER, AND A FIRST AERIAL FOR RADIATING THE GENERATED U.H.F. ENERGY; CARRIED BY THE VEHICLE, A SECOND AERIAL FOR RECEIVING SAID ENERGY, A LOCAL OSCILLATOR GENERATING A LOCAL WAVE, A SECOND STABILIZED CLOCK SYNCHRONIZED WITH SAID FIRST CLOCK FOR CONTROLLING SAID OSCILLATOR, A MIXER FOR MIXING SAID ENERGY AND SAID LOCAL WAVE, A METER COUPLED TO SAID MIXER FOR MEASURING THE DOPPLER EFFECT BETWEEN SAID LOCAL WAVE AND SAID ENERGY, MEANS CONTROLED BY SAID FIRST AND SAID SECOND CLOCK RESPECTIVELY FOR CYCLICALLY MODULATING IN SYNCHRONISM SAID TRANSMITTER AND SAID LOCAL OSCILLATOR, AND MEANS CARRIED BY THE VEHICLE FOR MEASURING THE PHASE-SHIFT BETWEEN SAID MODULATING MEANS.
Claim 2
Independent Claim 142 words
A DEVICE FOR DETERMINING THE COORDINGATES OF A VEHICLE AT THE SURFACE OF THE EARTH COMPRISING: CARRIED BY AN ARTIFICAL SATELLITE, A TRANSMITTER FOR GENERATING ULTRA-HIGH FREQUENCY ENERGY, A FIRST STABILIZED CLOCK FOR MODULATING AND CONTROLLING SAID TRANSMITTER, AND A FIRST AERIAL FOR RADIATING THE GENERATED U.H.F. ENERGY; CARRIED BY THE VEHICLE, A SECOND AERIAL FOR RECEIVING SAID ENERGY, A LOCAL OSCILLATOR GENERATING A LOCAL WAVE, A SECOND STABILIZED CLOCK SYNCHRONIZED WITH SAID FIRST CLOCK FOR CONTROLLING SAID OSCILLATOR, A MIXER FOR MIXING SAID ENERGY AND SAID LOCAL WAVE, A METER COUPLED TO SAID MIXER FOR MEASURING THE DOPPLER EFFECT BETWEEN SAID LOCAL WAVE AND SAID ENERGY, MEANS CONTROLED BY SAID FIRST AND SAID SECOND CLOCK RESPECTIVELY FOR CYCLICALLY MODULATING IN SYNCHRONISM SAID TRANSMITTER AND SAID LOCAL OSCILLATOR, AND MEANS CARRIED BY THE VEHICLE FOR MEASURING THE PHASE-SHIFT BETWEEN SAID MODULATING MEANS.

References Cited (Backward Citations)

US2838753A Cited
US2947985A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-05-30 1969-11-29 1970-05-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-05-30 1973-11-29 1974-05-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-05-30 1977-11-29 1978-05-31 $7700.00 Window Closed / Lapsed

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