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Expired Canadian patentCanada

Device for the scanning of objects by means of ultrasound echography

CA 1194209 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Fink, Mathias

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Abstract From the Canadian patent

Device for the scanning of objects by means of ultrasound echography". An ultrasonic echography apparatus which comprises a first processing circuit (100) of a known type for the processing of the ultrasonic ochos in order to display an A-type echogram on a display device (103) and a, second processing circuit (200) which is connected parallel to the first processing circuit and which consists mainly of an amplifier (210), a group of n parallel connected channels (220a...220n) each of which comprises at least one band-pass filter (221a...221n) and one envelope detector (222a...222n), an arithmetic circuit (240) for calculating an indicator for the spread of the amplitudes of the signals of …

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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

  • Granted September 24, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 14, 1982
GrantedSeptember 24, 1985
Term endedSeptember 24, 2002
Patent numberCA 1194209 A
Classification (IPC)A61B8/14 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedOct 14, 1982Patent grantedSep 24, 1985Term endedSep 24, 2002

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