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Expired European patentEurope

Process for continuously producing tetracyclododecene compound

EP 1151982 B1 · Applicant: JX Nippon Oil & Energy 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 November 10, 2000 and granted March 28, 2012. A European patent lasts at most 20 years from filing, so its term ended November 10, 2020.
  • 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 May 10, 2026.
  • 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.
FiledNovember 10, 2000
PublishedNovember 7, 2001
GrantedMarch 28, 2012
Term endedNovember 10, 2020
Application numberEP 00974908
Classification (CPC)C07C2/50 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedNov 10, 2000PublishedNov 7, 2001Patent grantedMarch 28, 2012Term endedNov 10, 2020

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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