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Expired Canadian patentCanada

Lignin decomposing bacteria having high activity and selectivity

CA 1321158 C · Owner: Takahara, Yoshimasa · Inventors: Kashino, Yoshinori; Takahara, Yoshimasa; Nishida, Tomoaki

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

Novel microorganisms strain NK-1148,and strain NK- 729W belonging to Porodisculus pendulus are excellent in lignin-degrading activity and high degrading selectivity.

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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 August 10, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 10, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 1988
GrantedAugust 10, 1993
Term endedAugust 10, 2010
Patent numberCA 1321158 C
Classification (IPC)C12N1/20 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 31, 1988Patent grantedAug 10, 1993Term endedAug 10, 2010

Sources & verification

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