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Expired Canadian patentCanada

Cassette for use with an i.v. infusion controller

CA 1137850 A · Owner: Baxter Travenol Laboratories, Inc. · Inventors: Garrett, Scott T.; Rudzena, William L.; Kulle, Lee K.

CIPO record

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Abstract From the Canadian patent

TITLE: CASETTE FOR USE WITH AN I.V. INFUSION CONTROLLER INVENTORS: SCOTT T. GARRETT, LEE K. KULLE WILLIAM L. RUDZENA, ABSTRACT, A casette employing a stretchable elastomeric membrane used with an intravenous infusion controller to limit the fluid flow to a patient. The casette includes two sections of rigid plastic fused together with the membrane between them. The membrane and one section of the plastic form the channel through which the intravenous solution passes. The other section of plastic limits the expansion of the membrane to a predetermined size in order to provide the casette with a chamber of known volume. A valving configuration in the inlet and outlet to the chamber controls …

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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 21, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 16, 1979
GrantedDecember 21, 1982
Term endedDecember 21, 1999
Patent numberCA 1137850 A
Classification (IPC)A61M5/14 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedFeb 16, 1979Patent grantedDec 21, 1982Term endedDec 21, 1999

Sources & verification

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