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Expired Canadian patentCanada

Immobilized sequence-specific probes

CA 1340864 C · Owner: Erlich, Henry A. · Inventors: Saiki, Randall K.; Erlich, Henry A.

CIPO record

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Abstract From the Canadian patent

An improved nucleic acid hybridization assay reagent capable of binding a nucleic, acid having a selected target sequence comprises a solid support matrix having oligonucleotide probes covalently attached thereto via a spacer arm. In a preferred, embodiment, the solid support has reactive amino groups capable of binding UV irradiated, nucleotides in an oligonucleotide probe which probe comprises a hybridizing , region complementary to a target sequence to be detected and a linking tail the tail , being, composed of nucleotides one or more of which is covalently bonded to the reactive groups, of said support.

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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

  • Granted December 28, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 19, 1989
GrantedDecember 28, 1999
Term endedDecember 28, 2016
Patent numberCA 1340864 C
Classification (IPC)C12Q1/68

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedMay 19, 1989Patent grantedDec 28, 1999Term endedDec 28, 2016

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