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Expired Canadian patentCanada

Method for obtaining in vitro recombined polynucleotide sequences, sequence banks and resulting sequences

CA 2339901 C · Owner: Dupret, Daniel · Inventors: Dupret, Daniel; Lefevre, Fabrice; Masson, Jean-Michel

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Abstract From the Canadian patent

The invention concerns a method for producing in vitro recombined polynucleotide sequences from a bank of polynucleotide sequences characterised in that it comprises the following steps: fragmenting an initial bank of double-strand polynucleotide sequences; (b) denaturation of the fragments resulting from step (a) optionally in the presence of one or several assembling matrix or matrices; (c) hybridising said fragments with one or several of the assembling matrix or matrices if the latter is/are not present in step (b); (d) ligation of said fragments; (e) optionally cloning said recombined polynucleotide sequences having advantageous properties with respect to one or several reference …

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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 11, 1999 and granted February 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2021.
  • 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 11, 1999
GrantedFebruary 28, 2012
Term endedAugust 11, 2019
Patent numberCA 2339901 C
Classification (IPC)C12N15/10 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedAug 11, 1999Patent grantedFeb 28, 2012Term endedAug 11, 2019

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