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Expired Canadian patentCanada

Novel megakaryocyte potentiator

CA 2126680 C · Owner: Hattori, Kunihiro · Inventors: Oh-Eda, Masayoshi; Yamaguchi, Nozomi; Hattori, Kunihiro

CIPO record

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Abstract From the Canadian patent

A novel megakaryocyte potentiator (Meg-POT) of human origin is provided. This Meg-POT has a molecular weight of about 32,000 in SDS-PAGE. In addition, this megakaryocyte potentiator contains the following amino acid sequence<:e in its molecule:, Gly Glu Thr Gly Gln Glu Ala Ala Pro Leu Asp Gly Val Leu. This Meg-POT is expected to be useful as a therapeutic preparation for disorders caused by decreased platelets or platelet hypofunction.

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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 December 24, 1992 and granted October 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 24, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 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.
FiledDecember 24, 1992
GrantedOctober 8, 2002
Term endedDecember 24, 2012
Patent numberCA 2126680 C
Classification (IPC)C07K14/47 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 24, 1992Patent grantedOct 8, 2002Term endedDec 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.