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Expired Canadian patentCanada

Ultrasonic display assembly

CA 1283475 C · Owner: Idee International R & D Inc. · Inventors: Hartl, Janos; Hartl, Katalin

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 display assembly for use with ultrasonic diagnostic equipment includes a modulator for receiving reflected pulses generated by an ultrasonic transducer, a cathode ray or television monitor for providing a visual ultrasonic display a vector, generator connected to a central processing unit and to the modulator, so that vector signals generated by the vector generator are modulated by the ultrasonic pulses in the modulator to provide signals to the monitor for creating an accurate ultrasonic image. The use of vector signals is substantially quicker than the pointby-point digital signals presently in use.

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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 April 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 18, 1986
GrantedApril 23, 1991
Term endedApril 23, 2008
Patent numberCA 1283475 C
Classification (IPC)A61B8/00

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedDec 18, 1986Patent grantedApril 23, 1991Term endedApril 23, 2008

Sources & verification

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