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Expired European patentEurope

Coking apparatus

EP 0200786 B1 · Applicant: KOA OIL COMPANY, LIMITED

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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 October 25, 1984 and granted January 17, 1990. A European patent lasts at most 20 years from filing, so its term ended October 25, 2004.
  • 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 April 25, 2010.
  • 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.
FiledOctober 25, 1984
PublishedNovember 12, 1986
GrantedJanuary 17, 1990
Term endedOctober 25, 2004
Application numberEP 84903980
Classification (CPC)C10B55/00

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedOct 25, 1984PublishedNov 12, 1986Patent grantedJan 17, 1990Term endedOct 25, 2004

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.