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Expired European patentEurope

Additive for lubricant or fuel, lubricant or fuel composition containing the same, and novel substituted hydroxy aromatic ester derivative

EP 0704425 B1 · Applicant: IDEMITSU KOSAN COMPANY LIMITED

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Overview

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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 June 10, 1994 and granted September 4, 2002. A European patent lasts at most 20 years from filing, so its term ended June 10, 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 December 10, 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.
FiledJune 10, 1994
PublishedApril 3, 1996
GrantedSeptember 4, 2002
Term endedJune 10, 2014
Application numberEP 94917796
Classification (CPC)C10L10/02 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJune 10, 1994PublishedApril 3, 1996Patent grantedSep 4, 2002Term endedJune 10, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.