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Expired Canadian patentCanada

A method of processing a sectional image of a sample bone including a cortical bone portion and a cancellous bone portion

CA 2201057 C · Owner: Teijin Limited · Inventors: Morimoto, Kenji; Kurome, Kanji; Oota, Tomohiro

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Abstract From the Canadian patent

A binary image of a bone section is provided to be processed. A region of interest is provided on the binary image to produce a ROI image by extracting pixels corresponding to the bone portion from the binary image within the region of interest, onto which ROI image morphometry is carried out. A series of pixels which are on the center line extending along the cortical bone portion in the ROI image. A hemi-cortical bone image is produced by using the determined center line. The hemi-cortical bone image has a wall thickness substantially half of the real wall thickness of the cortical bone portion. A template image for the cortical bone portion is produced by executing expanding operations …

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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 March 26, 1997 and granted January 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 26, 1997
GrantedJanuary 1, 2002
Term endedMarch 26, 2017
Patent numberCA 2201057 C
Classification (IPC)A61B6/03 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 26, 1997Patent grantedJan 1, 2002Term endedMarch 26, 2017

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