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Expired Canadian patentCanada

Method for the specific coupling of the cap of the extremity 5' of a fragment mrna and preparation of mrna and complete cdna

CA 2220045 C · Owner: Merenkova, Irena Nicolaevna · Inventors: Dumas Milne Edwards, Jean-Baptiste, Gabriel; Merenkova, Irena Nicolaevna

CIPO record

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Abstract From the Canadian patent

The present invention relates to a method for the specific coupling of the cup of the extremity 5' of a eucaryotic mRNA fragment by means of a molecule functionalized by an amine function. The present invention also relates to a method for isolating the extremity 5' of mRNA and a method for the preparation of the single strand cDNA extremity complementary of the extremity 5' of mRNA and of double strand cDNA corresponding to the extremity 5' of mRNA. The present invention also discloses a method for isolating full length cDNA corresponding to the totality of 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 April 29, 1996 and granted October 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 1996
GrantedOctober 30, 2001
Term endedApril 29, 2016
Patent numberCA 2220045 C
Classification (IPC)C12N15/10 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 29, 1996Patent grantedOct 30, 2001Term endedApril 29, 2016

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