Expired European patentEurope
Internal combustion engine
EP 1609975 B1 · Applicant: Yamaha Hatsudoki Kabushiki Kaisha
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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.
Why it's free to use
- Filed June 23, 2005 and granted August 3, 2011. A European patent lasts at most 20 years from filing, so its term ended June 23, 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.
FiledJune 23, 2005
PublishedDecember 28, 2005
GrantedAugust 3, 2011
Term endedJune 23, 2025
Application numberEP 05013607
Classification (CPC)F02D41/009 +1 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.