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Expired Canadian patentCanada

Production of erythropoietin by endogenous gene activation

CA 2298015 C · Owner: Stern, Anne · Inventors: Stern, Anne; Honold, Konrad; Koll, Hans

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Abstract From the Canadian patent

The invention relates to human cells which are capable on the basis of an , activation of the endogenic human EPO gene, of producing EPO in a sufficient amount and purity to make , possible a cost-effective production of human EPO as a pharmaceutical preparation. The , invention furthermore relates to a method for the preparation of such human EPO-producing cells, DNA constructs for the activation of the endogenic EPO in human cells, and method for the large technical production of EPO in human cells.

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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 July 22, 1998 and granted January 27, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 22, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 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.
FiledJuly 22, 1998
GrantedJanuary 27, 2015
Term endedJuly 22, 2018
Patent numberCA 2298015 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJuly 22, 1998Patent grantedJan 27, 2015Term endedJuly 22, 2018

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