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Method for determining the degree of methylation of defined cytosines in genomic dna in the sequence context 5'-cpg-3'

CA 2420840 A1 · Owner: Epigenomics Ag · Inventors: Piepenbrock, Christian; Olek, Alexander; Gutig, David

CIPO record

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Abstract From the Canadian patent

The invention relates to a method for detecting the degree of methylation of a defined cytosine in the sequence context 5ï-CpG-3ï of a genomic DNA sample. The first stage involves chemically treating the genomic DNA in such a way that the cytosine bases, but not the 5-methylcytosine bases are converted , into uracil. Parts of the genomic DNA containing the defined cytosine are then amplified. The amplified parts are given a detectable mark and the extent of the hybridisation of the amplified parts on the two classes of oligonucleotides is then determined by detecting the mark of the amplified parts. The degree of methylation of the defined cytosine in the genomic DNA sample can 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 September 1, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 1, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 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.
FiledSeptember 1, 2001
GrantedNo grant recorded
Term endedSeptember 1, 2021
Patent numberCA 2420840 A1
Classification (IPC)C12Q1/68 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedSep 1, 2001Term endedSep 1, 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.