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Expired European patentEurope

New derivative of cyano crotonamide as medicament with immunomodulating properties

EP 0559238 B1 · Applicant: HOECHST AKTIENGESELLSCHAFT

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Overview

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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 13, 1986 and granted May 3, 1995. A European patent lasts at most 20 years from filing, so its term ended September 13, 2006.
  • 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 13, 2012.
  • 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 13, 1986
PublishedSeptember 8, 1993
GrantedMay 3, 1995
Term endedSeptember 13, 2006
Application numberEP 93106367
Classification (CPC)A61P37/00 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedSep 13, 1986PublishedSep 8, 1993Patent grantedMay 3, 1995Term endedSep 13, 2006

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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