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Expired Canadian patentCanada

Method and structure for staining of biologic slides

CA 1182728 A · Owner: Bio-Innovations · Inventors: Schlossberg, David; Jackson, Frank W.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A disposable device for staining a biologic specimen affixed to a face or a microscopic slide wherein the slide is inserted vertically along tracks into a pool of staining liquid at the bottom of a cavity. The liquid is displaced into a flat space adjacent to each face of the slide to form a film that stains the specimen.

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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

  • Granted February 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 26, 1983
GrantedFebruary 19, 1985
Term endedFebruary 19, 2002
Patent numberCA 1182728 A
Classification (IPC)G01N1/30 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 26, 1983Patent grantedFeb 19, 1985Term endedFeb 19, 2002

Sources & verification

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