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Expired European patentEurope

Organometallic complexes comprising cationic heterocyclic carbenes

EP 1080098 B1 · Applicant: RHODIA FIBER AND RESIN INTERMEDIATES

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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 11, 1999 and granted April 9, 2003. A European patent lasts at most 20 years from filing, so its term ended May 11, 2019.
  • 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 11, 2024.
  • 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 11, 1999
PublishedMarch 7, 2001
GrantedApril 9, 2003
Term endedMay 11, 2019
Application numberEP 99918055
Classification (CPC)C07F3/003 +2 more

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

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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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