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Canadian application, no grantCanada

Method for culturing of cells on a membrane

CA 2048606 A1 · Owner: University Of Leicester · Inventors: Sneath, Peter H. A.

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

There is disclosed a method of culturing cells which produce products and identifying the thereby produced products characterised, in that the cells are cultured on the surface of a quantity of growth medium, which surface has been divided into a plurality of growth areas thereby limiting the amount of growth-medium which is available to the cells so that these reach a metabolic stage in which said products are produced, and identifying the thereby produced products by an in situ screening procedure.

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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 February 28, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 1990
GrantedNo grant recorded
Term endedFebruary 28, 2010
Patent numberCA 2048606 A1
Classification (IPC)C12N1/18 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 28, 1990Term endedFeb 28, 2010

Sources & verification

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