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Expired Canadian patentCanada

Fluorescence-based electrophoresis system for polynucleotide analysis

CA 2179714 C · Owner: Hoff, Louis B. · Inventors: Mead, Dennis E.; Simkins, Barry A.; Lachenmeier, Eric W.

CIPO record

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Abstract From the Canadian patent

The present invention relates to a fluorescent polynucleotide analyzer system which utilizes electrophoresis and in particular capillary-, based electrophoresis. The analyzer system of the present invention is comprised of in combination, a capillary containing an electrophoretic separation medium, a means for introducing a mixture of fluorescently labeled polynucleotide fragments into the capillary detection means, for detecting tile fluorescently labeled polynucleotide fragments including the simultaneous detection of multiple fluorescent labels and, means for introducing and removing electrophoretic separation medium from the capillary.

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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 February 6, 1995 and granted August 17, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2017.
  • 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 6, 1995
GrantedAugust 17, 1999
Term endedFebruary 6, 2015
Patent numberCA 2179714 C
Classification (IPC)G01N27/44 +1 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedFeb 6, 1995Patent grantedAug 17, 1999Term endedFeb 6, 2015

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