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Expired European patentEurope

Process for producing an elevated amount of nitrilase activity from a microbial strain of Rhodococcus

EP 0444640 B1 · Applicant: NITTO KAGAKU KOGYO KABUSHIKI KAISHA

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed February 27, 1991 and granted May 2, 1997. A European patent lasts at most 20 years from filing, so its term ended February 27, 2011.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by August 27, 2016.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledFebruary 27, 1991
PublishedSeptember 4, 1991
GrantedMay 2, 1997
Term endedFebruary 27, 2011
Application numberEP 91102938
Classification (CPC)C12P17/00 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedFeb 27, 1991PublishedSep 4, 1991Patent grantedMay 2, 1997Term endedFeb 27, 2011

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