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Expired European patentEurope

Preparation of oxirane compounds with titanasilsesquioxane catalysts

EP 0876360 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 December 18, 1996 and granted September 19, 2001. A European patent lasts at most 20 years from filing, so its term ended December 18, 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 June 18, 2022.
  • 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.
FiledDecember 18, 1996
PublishedNovember 11, 1998
GrantedSeptember 19, 2001
Term endedDecember 18, 2016
Application numberEP 96944683
Classification (CPC)—

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedDec 18, 1996PublishedNov 11, 1998Patent grantedSep 19, 2001Term endedDec 18, 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

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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