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Expired European patentEurope

Oil-feeding device for engine

EP 1598531 B1 · Applicant: AISIN SEIKI KABUSHIKI KAISHA

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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 February 27, 2004 and granted April 18, 2012. A European patent lasts at most 20 years from filing, so its term ended February 27, 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.
FiledFebruary 27, 2004
PublishedNovember 23, 2005
GrantedApril 18, 2012
Term endedFebruary 27, 2024
Application numberEP 04715528
Classification (CPC)F01M11/02

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedFeb 27, 2004PublishedNov 23, 2005Patent grantedApril 18, 2012Term endedFeb 27, 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

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