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Expired Canadian patentCanada

Modulation of exon recognition in pre-mrna by interfering with the secondary rna structure

CA 2796440 C · Owner: Academisch Ziekenhuis Leiden · Inventors: Van Ommen, Garrit-Jan Boudewijn; Van Deutekom, Judith Christina Theodora; Aartsma-Rus, Annemieke

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention provides a method for generating an oligonucleotide with which an exon may be skipped in a pre-mRNA and thus excluded from a produced mRNA thereof. Further provided are methods for altering the secondary structure of an mRNA to interfere with splicing processes and uses of the oligonucleotides and methods in the treatment of disease. Further provided are pharmaceutical compositions and methods and means for inducing skipping of several exons in a pre-mRNA.

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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 March 21, 2003 and granted August 27, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 21, 2003
GrantedAugust 27, 2019
Term endedMarch 21, 2023
Patent numberCA 2796440 C
Classification (IPC)C12N15/11 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 21, 2003Patent grantedAug 27, 2019Term endedMarch 21, 2023

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