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Expired European patentEurope

Coke oven feed mixture containing a binder

EP 0089396 B1 · Applicant: RUHRKOHLE AKTIENGESELLSCHAFT

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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 March 24, 1982 and granted August 19, 1987. A European patent lasts at most 20 years from filing, so its term ended March 24, 2002.
  • 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 September 24, 2007.
  • 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.
FiledMarch 24, 1982
PublishedSeptember 28, 1983
GrantedAugust 19, 1987
Term endedMarch 24, 2002
Application numberEP 82102439
Classification (CPC)C10B57/06

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedMarch 24, 1982PublishedSep 28, 1983Patent grantedAug 19, 1987Term endedMarch 24, 2002

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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