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Expired Canadian patentCanada

Method for massive directed mutagenesis

CA 2420721 C · Owner: Blesa, Stephane · Inventors: Delcourt, Marc; Blesa, Stephane

CIPO record

Overview

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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 concerns the field of molecular biology and more particularly that of mutagenesis. It concerns a method of high-rate directed mutagenesis that is the formation of numerous directed mutants in reduced time and with reduced number of steps. Said method is therefore referred to as massive directed mutagenesis.

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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 24, 2001 and granted November 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2023.
  • 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 24, 2001
GrantedNovember 12, 2013
Term endedAugust 24, 2021
Patent numberCA 2420721 C
Classification (IPC)C12N15/10 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedAug 24, 2001Patent grantedNov 12, 2013Term endedAug 24, 2021

Sources & verification

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