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Expired Canadian patentCanada

Ds11 (kctc 0231bp), novel bacillus sp. strain and novel phytase produced by it

CA 2249014 C · Owner: Lee, Jung Kee · Inventors: Kim, Hyung Kwon; Lee, Dong Kyu; Oh, Tae Kwang

CIPO record

Overview

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Abstract From the Canadian patent

This invention relates to a novel phytase produced from novel strain Bacillus sp. DS11 (KCTC 0231BP) and more precisely to a novel strain Bacillus sp. DS11 , and phytase enzyme enhancing the phosphate bioavailability present in grains supplied to monogastric animals.

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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 March 14, 1997 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 14, 1997
GrantedOctober 29, 2002
Term endedMarch 14, 2017
Patent numberCA 2249014 C
Classification (IPC)C12N9/16 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 14, 1997Patent grantedOct 29, 2002Term endedMarch 14, 2017

Sources & verification

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