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Expired Canadian patentCanada

Platelet gpiiia p1 a1 and p1 a2 epitopes, their preparation and use

CA 2125486 C · Owner: Ginsberg, Mark H. · Inventors: Bowditch, Ronald D.; Ginsberg, Mark H.; Mcmillan, Robert

CIPO record

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Abstract From the Canadian patent

Polypeptides and fusion polypeptides that immunologically mimic the native P1A1 and P1A2 determinants of platelet protein GPIIIa are disclosed. Also disclosed are DNA segments and recombinant DNA molecules that encode those polypeptides and fusion polypeptides and methods for expressing and using those determinants. Antibodies that immunoreact with one determinant or the other, but not both are also disclosed as are methods , of preparing and using those antibodies.

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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 November 24, 1992 and granted September 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 24, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 24, 1992
GrantedSeptember 7, 1999
Term endedNovember 24, 2012
Patent numberCA 2125486 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedNov 24, 1992Patent grantedSep 7, 1999Term endedNov 24, 2012

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