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Expired Canadian patentCanada

Method for identifying objects using data processing techniques

CA 2130340 C · Owner: Neopath, Inc. · Inventors: Lee, Shih-Jong James

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Abstract From the Canadian patent

The present invention provides a method for identifying the size shape, and, location of objects (200, 202 204, 206) in a specimen wherein the image of the , specimen is represented by image data (100) and wherein the image data (100) is , processed to provide mask data representing a mask (316) wherein the mask identifies, the size, shape, and location of the object. Generally the method includes , the step, of enhancing the image (102) and creating a threshold image (104 304, 610) , wherein, the threshold image (104 304, 610) includes a threshold intensity value (510) associated with each pixel of the image. The threshold image (610) is combined (506), with the original image (100) …

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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 18, 1993 and granted June 6, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 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.
FiledFebruary 18, 1993
GrantedJune 6, 2000
Term endedFebruary 18, 2013
Patent numberCA 2130340 C
Classification (IPC)G01N15/14 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 18, 1993Patent grantedJune 6, 2000Term endedFeb 18, 2013

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