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Expired Canadian patentCanada

Apparatus and method for analyses of biological specimens

CA 1312263 C · Owner: Cell Analysis System, Inc. · Inventors: Bacus, James William

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 kit for the quantitation of cell nuclei is described wherein the kit includes a stain and microscopic slides. Each slide has a reference cell objects and a specimen all area for receipt of specimen cells which are stained simultaneously with the reference cell objects.

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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 January 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 5, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 7, 1987
GrantedJanuary 5, 1993
Term endedJanuary 5, 2010
Patent numberCA 1312263 C
Classification (IPC)G01N33/48 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJuly 7, 1987Patent grantedJan 5, 1993Term endedJan 5, 2010

Sources & verification

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