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Expired European patentEurope

Substituted nitroimidazoles, process for their preparation and compositions containing them

EP 0002344 B1 · Applicant: Merck & Co., Inc.

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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 November 28, 1978 and granted September 15, 1982. A European patent lasts at most 20 years from filing, so its term ended November 28, 1998.
  • 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 May 28, 2004.
  • 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.
FiledNovember 28, 1978
PublishedJune 13, 1979
GrantedSeptember 15, 1982
Term endedNovember 28, 1998
Application numberEP 78300674
Classification (CPC)C07D413/04

Timeline

Timeline From EPO dates

1979198119831985198719891991199319951997Application filedNov 28, 1978PublishedJune 13, 1979Patent grantedSep 15, 1982Term endedNov 28, 1998

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