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EP 0767414 B1 · Applicant: KUREHA KAGAKU KOGYO KABUSHIKI KAISHA

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The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 April 19, 1996 and granted July 10, 2002. A European patent lasts at most 20 years from filing, so its term ended April 19, 2016.
  • 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 October 19, 2021.
  • 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.
FiledApril 19, 1996
PublishedApril 9, 1997
GrantedJuly 10, 2002
Term endedApril 19, 2016
Application numberEP 96910210
Classification (CPC)G03G7/006 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedApril 19, 1996PublishedApril 9, 1997Patent grantedJuly 10, 2002Term endedApril 19, 2016

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