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Expired European patentEurope

Use of lubricant composition containing Mu, Ti, Co compounds for viscosity of diesel engines

EP 0290457 B1 · Applicant: The Lubrizol Corporation

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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 January 12, 1987 and granted December 1, 1993. A European patent lasts at most 20 years from filing, so its term ended January 12, 2007.
  • 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 July 12, 2012.
  • 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.
FiledJanuary 12, 1987
PublishedNovember 17, 1988
GrantedDecember 1, 1993
Term endedJanuary 12, 2007
Application numberEP 87900961
Classification (CPC)C10M163/00 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedJan 12, 1987PublishedNov 17, 1988Patent grantedDec 1, 1993Term endedJan 12, 2007

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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