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Expired European patentEurope

Friction-roller speed changer

EP 0877181 B1 · Applicant: NSK LTD

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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.

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Why it's free to use

  • Filed May 8, 1998 and granted September 11, 2002. A European patent lasts at most 20 years from filing, so its term ended May 8, 2018.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by November 8, 2023.
  • 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 8, 1998
PublishedNovember 11, 1998
GrantedSeptember 11, 2002
Term endedMay 8, 2018
Application numberEP 98108441
Classification (CPC)F16H13/06 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedMay 8, 1998PublishedNov 11, 1998Patent grantedSep 11, 2002Term endedMay 8, 2018

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.