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Expired European patentEurope

Gas exchange valve of an internal combustion engine

EP 1731723 B1 · Applicant: Mahle International GmbH

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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 May 15, 2006 and granted September 26, 2007. A European patent lasts at most 20 years from filing, so its term ended May 15, 2026.
  • 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.
FiledMay 15, 2006
PublishedDecember 13, 2006
GrantedSeptember 26, 2007
Term endedMay 15, 2026
Application numberEP 06113928
Classification (CPC)F01L3/00 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMay 15, 2006PublishedDec 13, 2006Patent grantedSep 26, 2007Term endedMay 15, 2026

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.