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Expired Canadian patentCanada

Apparatus and method for handling fluid samples of body materials

CA 2249235 C · Owner: Chiapetta, Mark J. · Inventors: Dematteo, Todd M.; Greenfield, Walter; Chiapetta, Mark J.

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Abstract From the Canadian patent

A system for handling a body specimen is described for particular use in the handling of fecal specimens which are to be treated with a stain for enhancing its visibility. The system, as shown in the Figure includes dual optical , viewing chambers (30 32) mounted alongside of each other on a frame with appropriate tubing connecting ports (36.1 36.2) of the viewing chambers to , liquid specimen container (22) and a staining solution container (68). The staining solution container is connected to one of the tubings (60) leading to a viewing chamber (32) so that the drawing action from a pump (50) connected to ports (36.3, 36.4) on the other side of the viewing chambers can force an …

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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 6, 1997 and granted May 7, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 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 6, 1997
GrantedMay 7, 2002
Term endedMarch 6, 2017
Patent numberCA 2249235 C
Classification (IPC)G01N1/28 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 6, 1997Patent grantedMay 7, 2002Term endedMarch 6, 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.