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Expired Canadian patentCanada

Diacylhydrazine ligands for modulating the expression of exogenous genes in mammalian systems via an ecdysone receptor complex

CA 2513807 C · Owner: Chortyk, Orestes · Inventors: Chortyk, Orestes; Tice, Colin M.; Smith, Howard

CIPO record

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Abstract From the Canadian patent

The present invention relates to non-steroidal ligands for use in nuclear receptor-based inducible gene expression system and a method to modulate , exogenous gene expression in which an ecdysone receptor complex comprising: a DNA binding domain; a ligand binding domain; a transactivation domain; and a ligand is contracted with a DNA construct comprising: the exogenous gene and a response element; wherein the exogenous gene is under the control of the response element and binding of the DNA binding domain to the response element in the presence of the ligand results in activation or suppression of the gene.

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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 February 10, 2004 and granted December 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 10, 2004
GrantedDecember 11, 2012
Term endedFebruary 10, 2024
Patent numberCA 2513807 C
Classification (IPC)C07D319/16 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedFeb 10, 2004Patent grantedDec 11, 2012Term endedFeb 10, 2024

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