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Expired European patentEurope

Process for preparing tribromomethylsulfonylpyridine

EP 1184375 B1 · Applicant: SUMITOMO SEIKA CHEMICALS CO., 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.

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Why it's free to use

  • Filed May 10, 2000 and granted October 29, 2003. A European patent lasts at most 20 years from filing, so its term ended May 10, 2020.
  • 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 November 10, 2025.
  • 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.
FiledMay 10, 2000
PublishedMarch 6, 2002
GrantedOctober 29, 2003
Term endedMay 10, 2020
Application numberEP 00925611
Classification (CPC)C07D213/70 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMay 10, 2000PublishedMarch 6, 2002Patent grantedOct 29, 2003Term endedMay 10, 2020

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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