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Canadian application, no grantCanada

Process for amplifying detecting and cloning gc-rich dna sequences

CA 2117431 A1 · Owner: Brown, W. Ted · Inventors: Erster, Susan H.; Brown, W. Ted; Pergolizzi, Robert G.

CIPO record

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

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Abstract From the Canadian patent

A method is provided for amplifying and detecting specific GC-rich nucleic acid sequences contained in a nucleic acid or in a mixture of nucleic acids, which includes treating a separate nucleic acid containing the specific sequence with a molar excess of primers and a polymerase and extending the primers in the presence of dATP dCTP, TTP, and an analogue of dGTP. In one application of the present invention, individuals who are carriers for or afflicted by, the fragile X syndrome are detected.

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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 27, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 27, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 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.
FiledJanuary 27, 1993
GrantedNo grant recorded
Term endedJanuary 27, 2013
Patent numberCA 2117431 A1
Classification (IPC)C12Q1/68

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJan 27, 1993Term endedJan 27, 2013

Sources & verification

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