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Expired Canadian patentCanada

Rapid detection of nucleic acid sequences in a sample by labeling the sample

CA 1295535 C · Owner: Dattagupta, Nanibhushan · Inventors: Huguenel, Edward D.; Rae, Peter M.M.; Dattagupta, Nanibhushan

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Abstract From the Canadian patent

A method for detecting one or more microorganisms or polynucleotide sequences from eukaroytic sources in a nucleic acid-containing test sample comprising, (a) preparing a test sample comprising labeling the nucleic acids in the test sample (b) preparing one or more process by, immobilizing a single-stranded nucleic acid of one or more known microorganisms or sequences from eukaroytic sources, (c) contacting, under hybridization conditions, the labeled single-stranded nucleic acid to form hybridized labeled nucleic acids, and (d) assaying for the hybridized nucleic acids by detecting the label. The method can be used to detect genetic disorders, e.g. sickle-cell anemia.

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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 February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 20, 1987
GrantedFebruary 11, 1992
Term endedFebruary 11, 2009
Patent numberCA 1295535 C
Classification (IPC)C12Q1/68 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedFeb 20, 1987Patent grantedFeb 11, 1992Term endedFeb 11, 2009

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