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Expired Canadian patentCanada

Multiple antigen glycopeptide carbohydrate, vaccine comprising the same and use thereof

CA 2285018 C · Owner: Leclerc, Claude · Inventors: Cantacuzene, Daniele; Lo-Man, Richard; Leclerc, Claude

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

A carbohydrate peptide conjugate comprising: a carrier comprising a dendrimeric poly-Lysine enabling multiple epitopes to be covalently attached thereto, at least one peptide comprising one T epitope or several identical or different T epitopes, at least one carbohydrate moiety or a derivative , thereof, containing B epitope provided it is not a sialoside, or several identical or different epitopes. Use of this conjugate for inducing 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 March 27, 1998 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2020.
  • 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 27, 1998
GrantedJanuary 4, 2011
Term endedMarch 27, 2018
Patent numberCA 2285018 C
Classification (IPC)C07K16/18 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMarch 27, 1998Patent grantedJan 4, 2011Term endedMarch 27, 2018

Sources & verification

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