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Expired European patentEurope

Lubricating oil composition for transmission

EP 1598412 B1 · Applicant: Nippon Oil Corporation

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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 30, 2004 and granted May 6, 2015. A European patent lasts at most 20 years from filing, so its term ended January 30, 2024.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 30, 2004
PublishedNovember 23, 2005
GrantedMay 6, 2015
Term endedJanuary 30, 2024
Application numberEP 04706843
Classification (CPC)C10M169/04

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedJan 30, 2004PublishedNov 23, 2005Patent grantedMay 6, 2015Term endedJan 30, 2024

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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