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Expired Canadian patentCanada

Mutation within the connexin 26 gene responsible for prelingual non-syndromic deafness and method of detection

CA 2720384 C · Owner: Institut Pasteur · Inventors: Guesdon, Jean-Luc; Denoyelle-Gryson, Francoise; Petit, Christine

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Abstract From the Canadian patent

A purified polynucleotide having a chain of nucleotides corresponding to a mutated sequence which in a wild form encodes a polypeptide implicated in hereditary sensory defect wherein said mutated purified polynucleotide presents a mutation responsible for prelingual non-syndromic deafness selected from the group consisting of a specific deletion of at least one nucleotide.

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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 August 14, 1998 and granted August 12, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 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.
FiledAugust 14, 1998
GrantedAugust 12, 2014
Term endedAugust 14, 2018
Patent numberCA 2720384 C
Classification (IPC)C07H21/04 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 14, 1998Patent grantedAug 12, 2014Term endedAug 14, 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.