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Expired Canadian patentCanada

Radar apparatus

CA 2075409 C · Owner: Thales Nederland B.V. · Inventors: Zwarts, Johan Martin Carol

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

Radar apparatus provided with a signal generator (1) transmitter, means (2), antenna means (3) receiver means (4), a video processor, (6) and an indication device (7) for the generation of a radar picture of the surroundings of the radar apparatus with a first resolution. A selected target designated with control unit (8), may be displayed on the indication device (7) with a second higher resolution. To this end signal generator (1) generates in the direction of the selected target control signals for transmitter (2) with an increased bandwidth. Selection and conversion unit (5) matches echoes of these increased bandwidth signals to the bandwidth of video processor (6) and indication device …

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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 August 6, 1992 and granted December 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 6, 1992
GrantedDecember 4, 2001
Term endedAugust 6, 2012
Patent numberCA 2075409 C
Classification (IPC)G01S13/04 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedAug 6, 1992Patent grantedDec 4, 2001Term endedAug 6, 2012

Sources & verification

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