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Expired Canadian patentCanada

Method for removal of hiv and other viruses from blood

CA 2342203 C · Owner: Scamurra, David O. · Inventors: Scamurra, David O.; Ambrus, Julian L.

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

This invention discloses a method for reducing the viral load by removal of viruses or fragments or components thereof from the blood by extracorporeally circulating blood through hollow fibers which have in the porous exterior surface, immobilized affinity molecules having specificity for viral components. Passage of the fluid through the hollow fibers causes the viral particles to bind to the affinity molecules thereby reducing the viral load in the effluent.

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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

  • Filed August 30, 1999 and granted March 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 30, 1999
GrantedMarch 1, 2011
Term endedAugust 30, 2019
Patent numberCA 2342203 C
Classification (IPC)A61K39/39 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedAug 30, 1999Patent grantedMarch 1, 2011Term endedAug 30, 2019

Sources & verification

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