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Expired Canadian patentCanada

Animal feed additives comprising xylanase

CA 2209617 C · Owner: Hansen, Peter Kamp · Inventors: Hansen, Peter Kamp; Mullertz, Anette; Wagner, Peter

CIPO record

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Abstract From the Canadian patent

The present invention relates to animal feed additives which additives , comprise a monocomponent xylanase derived from a strain of Humicola a strain , of Thermoascus, a strain of Chaetomium a strain of Mucor, a strain of , Talaromyces a strain of Malbranchea, a strain of Myceliophthora a strain of , Thielavia, a strain of Byssochlamus or a strain of Paecilomyces. In other aspects, the invention relates to monocomponent xylanase preparations DNA , constructs, recombinant expression vectors host cells, and methods of , producing monocomponent xylanase preparations.

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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 January 26, 1996 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 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.
FiledJanuary 26, 1996
GrantedMay 28, 2002
Term endedJanuary 26, 2016
Patent numberCA 2209617 C
Classification (IPC)C12N15/56 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJan 26, 1996Patent grantedMay 28, 2002Term endedJan 26, 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.