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USRE28302E Expired / Lapsed US ⏱️ 0.0 years remaining

Harmonic radar detecting and ranging system for automotive vehicles

Assignee: —
•
Filing: 1974-03-15
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Granted: 1975-01-14
•
Expires: 1994-03-15
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Abstract

Abstract 1. A DETECTING AND RANGING SYSTEM FOR USE WITH AN AUTOMOTIVE VEHICLE, COMPRISING A TRANSMITTER, A RECEIVER AN OUTPUT MEANS AND A DIRECTIONAL ANTENNA NETWORK COUPLED TO SAID TRANSMITTER AND SAID RECEIVER; SAID TRANSMITTER COMPRISING MEANS FOR GENRATING ELECTROMAGNETIC ENERGY SIGNAL OF A PREDETERMINED FREQUENCY; SAID RECEIVER COMPRISING MEANS ADAPTED TO DETECT ELECTROMAGNETIC ENERGY SIGNALS WHICH ARE DERIVED FROM AND HARMONICALLY RELATED TO SAID SIGNALS OF SAID PREDETERMINED FREQUENCY; SAID OUTPUT MEANS BEING COUPLED TO SAID RECEIVER AND COOPERATING MEANS SAID RECEIVER FOR PRODUCING AN OUTPUT SIGNAL IN RESPONSE TO SAID DETECTED SIGNALS: AND SAID ANTENNA NETWORK INCLUDING MEANS FOR SELECTIVELY TRANSMITTING SAID SIGNALS OF SAID PREDETERMINED FREQUENCY INTO A GIVEN TRANSMISSION DIRECTION WHILE POLARIZING SAID TRANSMITTED SIGNALS INTO A GIVEN POLARIZATION DIRECTION, SAID ANTENNA NETWORK FURTHER INCLUDING MEANS SELECTIVELY RESPONSIVE ONLY TO ELECTRO- MAGNETIC SIGANLS ORIGINATING FROM SAID GIVEN TRANSMISSION DIRECTION, WHICH SIGNALS HAVE BEEN DERIVED FROM AND ARE HARMONICALLY RELATED TO SAID TRANSMITTED SIGNALS AND WHICH HAVE A POLARIZATION DIRECTION SUBSTANTIALLY ORTHOGONAL TO SAID GIVEN POLARIZATION DIRECTION, FOR APPLYING SAID SELECTIVELY DERIVED SIGNALS TO SAID RECEIVER.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 03:33
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/024; G01S7/025; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/34; G01S13/74; G01S13/75; G01S13/751; G01S13/753; G01S13/88; G01S13/93; G01S13/931; G01S7/023; G01S7/0231; G01S13/76; G01S13/767; G01S2013/932; G01S2013/9327; G01S2013/93271; G01S2013/9329

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3144647A Cited
US3079557A Cited
US3161879A Cited
GB959330A Cited
US3098971A Cited
GB1042353A Cited
US3308464A Cited
US3403394A Cited
US3631484A Cited
US3754250A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-13 1978-07-15 1979-01-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-13 1982-07-15 1983-01-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-13 1986-07-15 1987-01-14 $7700.00 Window Closed / Lapsed

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