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Expired European patentEurope

Polymer insulator

EP 0887809 B1 · Applicant: NGK INSULATORS, LTD.

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Overview

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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 June 23, 1998 and granted March 20, 2002. A European patent lasts at most 20 years from filing, so its term ended June 23, 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 December 23, 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.
FiledJune 23, 1998
PublishedDecember 30, 1998
GrantedMarch 20, 2002
Term endedJune 23, 2018
Application numberEP 98304918
Classification (CPC)H01B17/325

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedJune 23, 1998PublishedDec 30, 1998Patent grantedMarch 20, 2002Term endedJune 23, 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

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