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EP 0692011 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 March 29, 1994 and granted November 6, 1996. A European patent lasts at most 20 years from filing, so its term ended March 29, 2014.
  • 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 29, 2019.
  • 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 29, 1994
PublishedJanuary 17, 1996
GrantedNovember 6, 1996
Term endedMarch 29, 2014
Application numberEP 94913104
Classification (CPC)C10L10/04 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedMarch 29, 1994PublishedJan 17, 1996Patent grantedNov 6, 1996Term endedMarch 29, 2014

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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