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Expired Canadian patentCanada

Method and apparatus for assessing slide and specimen preparation quality

CA 2220388 C · Owner: Tripath Imaging, Inc. · Inventors: Wilhelm, Paul S.; Lee, Shih-Jong J.

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Abstract From the Canadian patent

An automated biological specimen screener (500) reports an assessment of slide and specimen preparation and quality. The automated biological specimen screener (500) measures parameters which reflect slide physical characteristics, specimen collection quality and specimen preparation , quality. The automated system (500) reports an objective measure and uses a consistent standard of evaluation (118 120, 122, 124, 126). The automated , system (500) evaluates characteristics of a slide set from a clinic (103). The automated system (500) makes a determination of whether these characteristics are within a training capability of a given automated biological screener. Additionally, rather …

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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 May 29, 1996 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2018.
  • 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 29, 1996
GrantedAugust 5, 2003
Term endedMay 29, 2016
Patent numberCA 2220388 C
Classification (IPC)G01N37/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMay 29, 1996Patent grantedAug 5, 2003Term endedMay 29, 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.