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Expired Canadian patentCanada

Sdk peptides, a preparation process of the same and therapeutic compositions containing them

CA 2011874 C · Owner: Thierry, Josiane · Inventors: Thierry, Josiane; Lenfant, Maryse

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 invention relates to peptides having the general formula, H2N - W - Ser - Asp - Lys - X - OH wherein X represents a Pro or Lys residue or a valence bond and W represents a Thr or Pro residue or a valence bond with the proviso that if X represents a Pro residue then W also represents a Pro residue ; to a process for the preparation of the same and to therapeutic compositions containing said peptides.

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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 9, 1990 and granted July 21, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 9, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2012.
  • 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 9, 1990
GrantedJuly 21, 1998
Term endedMarch 9, 2010
Patent numberCA 2011874 C
Classification (IPC)C07K7/06 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 9, 1990Patent grantedJuly 21, 1998Term endedMarch 9, 2010

Sources & verification

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