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Expired Canadian patentCanada

Comparative genomic hybridization (cgh)

CA 2392673 C · Owner: Kallioniemi, Anne · Inventors: Kallioniemi, Olli Pekka; Pinkel, Daniel; Kallioniemi, Anne

CIPO record

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Abstract From the Canadian patent

Disclosed are new methods comprising the use of in situ hybridization to detect abnormal nucleic acid sequence copy numbers in one or more genomes wherein repetitive sequences that bind to multiple loci in a reference chromosome spread are either substantially removed and/or their hybridization signals suppressed. The invention termed Comparative Genomic Hybridization (CGH) provides for methods of determining the relative number of copies of nucleic acid sequences in one or more subject genomes or portions thereof (for example a tumor cell) as a function of the location of those sequences in a reference genome (for example a normal human genome). The intensity(ies) of the signals from each …

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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 March 1, 1993 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 1, 1993
GrantedJanuary 10, 2012
Term endedMarch 1, 2013
Patent numberCA 2392673 C
Classification (IPC)C12Q1/68

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 1, 1993Patent grantedJan 10, 2012Term endedMarch 1, 2013

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