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Expired Canadian patentCanada

Cellulases, the genes encoding them and uses thereof

CA 2232245 C · Owner: Vehmaanpera, Jari · Inventors: Haakana, Heli; Paloheimo, Marja; Londesborough, John

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

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Abstract From the Canadian patent

Genes encoding cellulases, and a gene encoding a protein that facilitates the action of such cellulases, the cellulases and a protein that facilitates the action of such cellulases, and enzyme preparations containing such proteins are described. The native hosts and the culture medium of said hosts containing said cellulases are also disclosed. These proteins are especially useful in the textile and detergent industry and in pulp and paper industry.

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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 October 17, 1996 and granted June 7, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 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.
FiledOctober 17, 1996
GrantedJune 7, 2011
Term endedOctober 17, 2016
Patent numberCA 2232245 C
Classification (IPC)C12N15/56 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedOct 17, 1996Patent grantedJune 7, 2011Term endedOct 17, 2016

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