Patent US3302201A successfully refreshed from Google Patents.
US3302201A
Expired / Lapsed
US
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Tactical landing approach radio
Assignee: General Precision Inc
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Filing: 1964-11-27
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Granted: 1967-01-31
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Leonard O Vladimir
- 👤 Milton I Lilie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:38
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/42; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/422
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A TACTICAL LANDING APPROACH RADIO SYSTEM COMPRISING, A GROUND BASED TRANSMITTER INCLUDING AN ANTENNA RADIATING A DIRECTIVE BEAM OF SIGNAL ENERGY, MEANS FOR ROTATING SAID DIRECTIVE BEAM OF SIGNAL ENERGY IN A CONICAL SCAN ABOUT AN AXIS AT A SELECTED RATE OF ROTATION, MEANS OPERATED IN SYNCHRONISM WITH THE ROTATION OF SAID DIRECTIVE BEAM FOR GENERATING A REFERENCE SIGNAL HAVING A FREQUENCY EQUAL TO THE RATE OF ROTATION OF SAID DIRECTIVE BEAM AND A PHASE DEPENDENT ON THE POSITIONAL DISPLACEMENT THEREOF, FREQUENCY DIVIDING MEANS DIVIDING THE FREQUENCY OF SAID REFERENCE SIGNAL BY A SELECTED NUMBER, A LOCAL OSCILLATOR, MEANS FOR FREQUENCY MODULATING THE OUTPUT OF SAID LOCAL OSCILLATOR BY THE OUTPUT OF SAID FREQUENCY DIVIDING MEANS, A MICROWAVE GENERATOR, MEANS FOR AMPLITUDE MODULATING THE OUTPUT OF SAID MICROWAVE GENERATOR BY THE FREQUENCY MODULATED OUTPUT OF SAID LOCAL OSCILLATOR TO PRODUCE A MODULATED TRANSMISSION SIGNAL,
Claim 2
Dependent Claim
144 words
A TACTICAL LANDING APPROACH RADIO SYSTEM COMPRISING, A GROUND BASED TRANSMITTER INCLUDING AN ANTENNA RADIATING A DIRECTIVE BEAM OF SIGNAL ENERGY, MEANS FOR ROTATING SAID DIRECTIVE BEAM OF SIGNAL ENERGY IN A CONICAL SCAN ABOUT AN AXIS AT A SELECTED RATE OF ROTATION, MEANS OPERATED IN SYNCHRONISM WITH THE ROTATION OF SAID DIRECTIVE BEAM FOR GENERATING A REFERENCE SIGNAL HAVING A FREQUENCY EQUAL TO THE RATE OF ROTATION OF SAID DIRECTIVE BEAM AND A PHASE DEPENDENT ON THE POSITIONAL DISPLACEMENT THEREOF, FREQUENCY DIVIDING MEANS DIVIDING THE FREQUENCY OF SAID REFERENCE SIGNAL BY A SELECTED NUMBER, A LOCAL OSCILLATOR, MEANS FOR FREQUENCY MODULATING THE OUTPUT OF SAID LOCAL OSCILLATOR BY THE OUTPUT OF SAID FREQUENCY DIVIDING MEANS, A MICROWAVE GENERATOR, MEANS FOR AMPLITUDE MODULATING THE OUTPUT OF SAID MICROWAVE GENERATOR BY THE FREQUENCY MODULATED OUTPUT OF SAID LOCAL OSCILLATOR TO PRODUCE A MODULATED TRANSMISSION SIGNAL,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |