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Expired European patentEurope

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EP 0325889 B1 · Applicant: MITSUBISHI JUKOGYO KABUSHIKI KAISHA

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Overview

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 December 29, 1988 and granted June 17, 1992. A European patent lasts at most 20 years from filing, so its term ended December 29, 2008.
  • 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 June 29, 2014.
  • 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.
FiledDecember 29, 1988
PublishedAugust 2, 1989
GrantedJune 17, 1992
Term endedDecember 29, 2008
Application numberEP 88730285
Classification (CPC)B66F9/186

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedDec 29, 1988PublishedAug 2, 1989Patent grantedJune 17, 1992Term endedDec 29, 2008

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