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Expired European patentEurope

Use of certain additive packages in Diesel lubricants

EP 0240516 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 September 12, 1986 and granted December 29, 1993. A European patent lasts at most 20 years from filing, so its term ended September 12, 2006.
  • 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 March 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.
FiledSeptember 12, 1986
PublishedOctober 14, 1987
GrantedDecember 29, 1993
Term endedSeptember 12, 2006
Application numberEP 86905651
Classification (CPC)C10M163/00 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedSep 12, 1986PublishedOct 14, 1987Patent grantedDec 29, 1993Term endedSep 12, 2006

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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