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Expired Canadian patentCanada

In vitro cell culture assembly

CA 2186209 C · Owner: Pay, Nicholas George Martin · Inventors: Pay, Nicholas George Martin

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An assembly for in vitro culture of cells of the present invention includes a culture vessel with at least one well. The well has an open top a bottom and a wall with an inside, surface. The assembly also includes at least one insert sized for placement within the well. The insert has an outside surface an open end and a closed end. There is a microporous membrane at the closed end of the insert that closes the end and thereby forms a receptacle within the insert. The assembly further includes provisions for adjustably positioning the insert within the well between a first position where the closed end of the insert is a first distance from said bottom of the well and a second position …

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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 September 23, 1996 and granted May 11, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 23, 1996
GrantedMay 11, 1999
Term endedSeptember 23, 2016
Patent numberCA 2186209 C
Classification (IPC)C12M3/00 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedSep 23, 1996Patent grantedMay 11, 1999Term endedSep 23, 2016

Sources & verification

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