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Expired Canadian patentCanada

Method for quantifying phosphokinase activity on proteins

CA 2423979 C · Owner: Invitrogen Corporation · Inventors: Schaeffer, Erik; Reagan, Kevin J.; Wang, Jimin

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Abstract From the Canadian patent

The invention involves a method for measuring phosphorylation of proteins and as such, is an indicator of protein kinase activity. The method involves the in vitro phosphorylation of a target protein but subjecting that protein (nonphosphorylated) to reaction mixture containing all reagents including , phosphokinase which allow the creation of a phosphorylated form of protein. The phostphorylated protein is measured by contacting it with an antibody specific for the phosphorylation sites(s). The invention includes antibodies useful in practicing the methods of the invention. The invention particularly relates to phosphorylation of Tau, Rb and EGFR proteins and antibodies specific for …

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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 September 27, 2001 and granted March 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 27, 2001
GrantedMarch 6, 2012
Term endedSeptember 27, 2021
Patent numberCA 2423979 C
Classification (IPC)C07K16/28 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedSep 27, 2001Patent grantedMarch 6, 2012Term endedSep 27, 2021

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