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Expired European patentEurope

Internal combustion engine with lubrification by circulation of oil under pressure according to the dry sump principle

EP 1761687 B1 · Applicant: Dr. Ing. h.c. F. Porsche AG

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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 April 15, 2005 and granted August 22, 2012. A European patent lasts at most 20 years from filing, so its term ended April 15, 2025.
  • 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.
FiledApril 15, 2005
PublishedMarch 14, 2007
GrantedAugust 22, 2012
Term endedApril 15, 2025
Application numberEP 05733654
Classification (CPC)F01M1/12 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedApril 15, 2005PublishedMarch 14, 2007Patent grantedAug 22, 2012Term endedApril 15, 2025

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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