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Expired European patentEurope

Condensed thiadiazole derivative, method of its production, and use thereof

EP 0562599 B1 · Applicant: Takeda Chemical Industries, Ltd.

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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 March 25, 1993 and granted September 4, 2002. A European patent lasts at most 20 years from filing, so its term ended March 25, 2013.
  • 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 September 25, 2018.
  • 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.
FiledMarch 25, 1993
PublishedSeptember 29, 1993
GrantedSeptember 4, 2002
Term endedMarch 25, 2013
Application numberEP 93104939
Classification (CPC)C07D513/04

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedMarch 25, 1993PublishedSep 29, 1993Patent grantedSep 4, 2002Term endedMarch 25, 2013

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