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Expired Canadian patentCanada

Method of purifying, stabilising or isolating nucleic acids contained in biological matter

CA 2228769 C · Owner: Muller, Oliver · Inventors: Muller, Oliver; Deuter, Rainer

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The invention relates to a method of purifying stabilizing and/or isolating , nucleic acids contained in biological matter, wherein an adsorption matrix is added to a , nucleic-acid-containing specimen of biological matter in order to bind contaminants.

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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, 1996 and granted April 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 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.
FiledAugust 14, 1996
GrantedApril 12, 2011
Term endedAugust 14, 2016
Patent numberCA 2228769 C
Classification (IPC)C12N15/10 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedAug 14, 1996Patent grantedApril 12, 2011Term endedAug 14, 2016

Sources & verification

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