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Expired European patentEurope

Poppet valve device

EP 0386263 B1 · Applicant: KABUSHIKI KAISHA KOMATSU SEISAKUSHO

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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 August 24, 1989 and granted November 3, 1993. A European patent lasts at most 20 years from filing, so its term ended August 24, 2009.
  • 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 February 24, 2015.
  • 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.
FiledAugust 24, 1989
PublishedSeptember 12, 1990
GrantedNovember 3, 1993
Term endedAugust 24, 2009
Application numberEP 89909618
Classification (CPC)F15B13/02

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedAug 24, 1989PublishedSep 12, 1990Patent grantedNov 3, 1993Term endedAug 24, 2009

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.