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Expired European patentEurope

Sintered ceramic body with excellent refractoriness (heat resistance) and machinability and method of manufacture of the same

EP 0329875 B1 · Applicant: INAX CORPORATION

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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 February 25, 1988 and granted January 13, 1993. A European patent lasts at most 20 years from filing, so its term ended February 25, 2008.
  • 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 August 25, 2013.
  • 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.
FiledFebruary 25, 1988
PublishedAugust 30, 1989
GrantedJanuary 13, 1993
Term endedFebruary 25, 2008
Application numberEP 88301614
Classification (CPC)C04B35/22

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedFeb 25, 1988PublishedAug 30, 1989Patent grantedJan 13, 1993Term endedFeb 25, 2008

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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