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Expired Canadian patentCanada

Method and apparatus for measuring temperature of a living body

CA 1293567 C · Owner: Yamaguchi, Keiji · Inventors: Yamaguchi, Keiji

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Abstract From the Canadian patent

A method and apparatus for measuring the temperature of a living body, providing a predetermined predictive functional formula in which the value of a shape parameter for reflecting the shape of a sensed temperature curve and the value of coefficient parameters for superimposing said prediction function on said sensed temperature curve are undetermined. The temperature of a living body is sensed to obtain temperature data for subsequent processing, and elapsed time from start of temperature measurement is measured to obtain elapsed time data. The value of shape parameter is set on the basis of prescribed temperature data, and the value of coefficient parameters are set by solving …

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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 December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 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.
FiledNovember 4, 1987
GrantedDecember 24, 1991
Term endedDecember 24, 2008
Patent numberCA 1293567 C
Classification (IPC)G01K7/00 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedNov 4, 1987Patent grantedDec 24, 1991Term endedDec 24, 2008

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