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Expired Canadian patentCanada

Integral hydraulic circuit for hemodialysis apparatus

CA 1104032 A · Owner: Baxter Travenol Laboratories, Inc. · Inventors: Phillips, Earl G.; Goldhaber, Richard P.; Toch, Theodore H.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A one-piece hydraulic circuit is provided fo? use with a blood dialyzer for performing functions currently performed with a multiplicity of blood inlet and outlet sets and related items comprising flexible tubing and the like.

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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 June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 10, 1978
GrantedJune 30, 1981
Term endedJune 30, 1998
Patent numberCA 1104032 A
Classification (IPC)A61B10/00 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMarch 10, 1978Patent grantedJune 30, 1981Term endedJune 30, 1998

Sources & verification

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