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Expired European patentEurope

Method for the preparation of high purity substituted benz e]indoles and the alkaline salts thereof

EP 0719254 B1 · Applicant: Societe d'Etudes et de Recherches Biologiques

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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.

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Why it's free to use

  • Filed September 14, 1994 and granted May 30, 2001. A European patent lasts at most 20 years from filing, so its term ended September 14, 2014.
  • 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 March 14, 2020.
  • 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.
FiledSeptember 14, 1994
PublishedJuly 3, 1996
GrantedMay 30, 2001
Term endedSeptember 14, 2014
Application numberEP 94926984
Classification (CPC)C09B23/02 +1 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedSep 14, 1994PublishedJuly 3, 1996Patent grantedMay 30, 2001Term endedSep 14, 2014

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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