Patent Yard Sign in
Expired European patentEurope

Iron species preform

EP 1769866 B1 · Applicant: Nippon Piston Ring Co., Ltd.

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed September 28, 2006 and granted January 26, 2011. A European patent lasts at most 20 years from filing, so its term ended September 28, 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.
FiledSeptember 28, 2006
PublishedApril 4, 2007
GrantedJanuary 26, 2011
Term endedSeptember 28, 2026
Application numberEP 06020493
Classification (CPC)F16C9/02 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedSep 28, 2006PublishedApril 4, 2007Patent grantedJan 26, 2011Term endedSep 28, 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.