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Expired Canadian patentCanada

Isolation of nucleic acid from stool samples and other biological materials which are rich in inhibitors

CA 2399475 C · Owner: Sprenger-Haussels, Markus · Inventors: Sprenger-Haussels, Markus

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Abstract From the Canadian patent

The invention relates to a method for the stabilisation purification or/and , isolation of nucleic acids from material samples, in particular stool samples, which can contain , impurities and inhibitors or interfering substances. The invention further relates to a reagent kit for carrying out , said method. The basis of the invention is in particular, a method for , purification stabilisation , or/and isolation of nucleic acids from material samples whereby a buffer is , added to the sample containing the nucleic acids, with a pH value of 2 to 7 a salt concentration , of at least 100mM or/and a phenol neutralising substance. According to the invention pure , nucleic acids which may , be …

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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 January 18, 2001 and granted April 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 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.
FiledJanuary 18, 2001
GrantedApril 12, 2011
Term endedJanuary 18, 2021
Patent numberCA 2399475 C
Classification (IPC)—

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2002200420062008201020122014201620182020Application filedJan 18, 2001Patent grantedApril 12, 2011Term endedJan 18, 2021

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