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Expired Canadian patentCanada

Method for preventing blood coaguli from being formed in the extra-body circuit of dialysis apparatus and composition useful therefor

CA 1313819 C · Owner: Rossi, Renato · Inventors: Rossi, Renato

CIPO record

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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 method for preventing blood coaguli from being formed in the extra-body circuit of dialysis apparatus and composition useful therefor" ABSTRACT, The introduction of Defibrotide as a bolus or by infusion, upstream of the dialysis membrane of the extra body circuit of apparatus for the extra-body dialysis prevents coaguli from being formed in the blood stream.

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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 February 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 21, 1988
GrantedFebruary 23, 1993
Term endedFebruary 23, 2010
Patent numberCA 1313819 C
Classification (IPC)A61M1/36 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 21, 1988Patent grantedFeb 23, 1993Term endedFeb 23, 2010

Sources & verification

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