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Expired European patentEurope

Concurrent epoxidation and catalyst residue extraction

EP 0826007 B1 · Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

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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 15, 1996 and granted March 10, 1999. A European patent lasts at most 20 years from filing, so its term ended May 15, 2016.
  • 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 15, 2021.
  • 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 15, 1996
PublishedMarch 4, 1998
GrantedMarch 10, 1999
Term endedMay 15, 2016
Application numberEP 96917383
Classification (CPC)C08C19/06 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedMay 15, 1996PublishedMarch 4, 1998Patent grantedMarch 10, 1999Term endedMay 15, 2016

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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