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Expired Canadian patentCanada

Antigenic preparations from keratinophilic fungi

CA 2229203 C · Owner: Ivanova, Ludmilla G. · Inventors: Karle, Joachim; Farnow, Dieter; Poliakov, Igor Dimitrievich

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

The present invention relates to antigenic preparations comprising polysaccharides and/or glycopeptides preparable from keratinophilic fungi as well as yeasts, processes for the preparation of these antigenic preparations their use as pharmaceutical substances as well as their use as vaccines including but not limited to, the prophylaxis and treatment of allergy as , well as for modulating the immune response.

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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 9, 1996 and granted December 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2018.
  • 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 9, 1996
GrantedDecember 13, 2011
Term endedAugust 9, 2016
Patent numberCA 2229203 C
Classification (IPC)C12N1/16 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedAug 9, 1996Patent grantedDec 13, 2011Term endedAug 9, 2016

Sources & verification

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