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Expired European patentEurope

11-halogene-prostane derivatives, process for obtaining them and utilization thereof as drugs

EP 0147461 B1 · Applicant: SCHERING 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.

Why it's free to use

  • Filed July 5, 1984 and granted January 8, 1992. A European patent lasts at most 20 years from filing, so its term ended July 5, 2004.
  • 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 January 5, 2010.
  • 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.
FiledJuly 5, 1984
PublishedJuly 10, 1985
GrantedJanuary 8, 1992
Term endedJuly 5, 2004
Application numberEP 84902782
Classification (CPC)C07C405/00 +2 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedJuly 5, 1984PublishedJuly 10, 1985Patent grantedJan 8, 1992Term endedJuly 5, 2004

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