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Expired Canadian patentCanada

Radar system and method for detecting targets in clutter using target intensity and angular position

CA 2176607 C · Owner: Raytheon Company · Inventors: Schober, Michael B.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A radar system (20) includes a radar receiver (22) that provides the amplitude and the angular position of a plurality of return signals. A computer(30) forms a test function of amplitudes and angular positions of the plurality of return signals and compares the test function with a threshold value. Returns associated with a test function whose value is equal to or greater than the threshold value are determined to be targets (26) and those with lesser values are considered clutter (28).

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed May 14, 1996 and granted July 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 14, 1996
GrantedJuly 11, 2000
Term endedMay 14, 2016
Patent numberCA 2176607 C
Classification (IPC)G01S13/66 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMay 14, 1996Patent grantedJuly 11, 2000Term endedMay 14, 2016

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.