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Expired European patentEurope

Fuel compound for internal combustion engines

EP 0629686 B1 · Applicant: AKTSIONERNOE OBSCHESTVO" ACHINSKY NEFTEPERERABATYVAJUSCHY ZAVOD"

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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 October 20, 1993 and granted July 22, 1998. A European patent lasts at most 20 years from filing, so its term ended October 20, 2013.
  • 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 April 20, 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.
FiledOctober 20, 1993
PublishedDecember 21, 1994
GrantedJuly 22, 1998
Term endedOctober 20, 2013
Application numberEP 94900321
Classification (CPC)C10L1/305

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedOct 20, 1993PublishedDec 21, 1994Patent grantedJuly 22, 1998Term endedOct 20, 2013

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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