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Expired Canadian patentCanada

A vaccine composition comprising qs21, mpl, a cpg oligonucleotide and a cancer antigen

CA 2425358 C · Owner: Stephenne, Jean · Inventors: Garcon, Nathalie; Gerard, Catherine Marie Ghislaine; Stephenne, Jean

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

The present invention provides novel adjuvant formulations for use with cancer antigens. The adjuvant comprises a saponin and a immunostimulatory oligonucleotide.

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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 October 16, 2001 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2023.
  • 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 16, 2001
GrantedAugust 21, 2012
Term endedOctober 16, 2021
Patent numberCA 2425358 C
Classification (IPC)A61K39/39 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 16, 2001Patent grantedAug 21, 2012Term endedOct 16, 2021

Sources & verification

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