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Expired Canadian patentCanada

Instrument for measuring living body components

CA 1305530 C · Owner: Tashita, Junichi · Inventors: Uchida, Teruyoshi; Tashita, Junichi; Ooe, Akihiko

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

Disclose is an instrument for measuring living body components, which has (i) a fine tube having at one end thereof a connection portion to be connected to an indwelling needle or indwelling catheter and an infusion portion, from which at least a blood anticoagulant solution can be infused, (ii) a fine linear sensor for measuring living body components, extended from the inferior of the fine tube to the outside through the connection portion, and (iii) a mechanism for introducing blood at least into the interior of a fine tube portion of the indwelling needle ox catheter intermittently or periodically when the indwelling needle or catheter is connected to the fine tube and kept in the blood …

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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 July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 2009.
  • 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 22, 1987
GrantedJuly 21, 1992
Term endedJuly 21, 2009
Patent numberCA 1305530 C
Classification (IPC)G01N33/48 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMay 22, 1987Patent grantedJuly 21, 1992Term endedJuly 21, 2009

Sources & verification

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