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Expired Canadian patentCanada

Cell culture filter apparatus and method

CA 1267623 C · Owner: Monsanto Company · Inventors: Geimer, Raymond Charles; Tolbert, William Robert

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

Abstract of the Disclosure, Cell culture filter apparatus and method is disclosed for the large scale cultivation of mammalian cells. This system is adapted for convenient manual assembly - disassembly of internal parts and interchangeability of filtration units.

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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 April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
  • 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 2, 1987
GrantedApril 10, 1990
Term endedApril 10, 2007
Patent numberCA 1267623 C
Classification (IPC)C12M3/00 +1 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedFeb 2, 1987Patent grantedApril 10, 1990Term endedApril 10, 2007

Sources & verification

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