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Expired European patentEurope

Process for the separation of C10 aromatic isomers

EP 0200360 B1 · Applicant: EXXON CHEMICAL PATENTS INC.

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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 26, 1986 and granted February 22, 1989. A European patent lasts at most 20 years from filing, so its term ended March 26, 2006.
  • 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 26, 2011.
  • 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 26, 1986
PublishedNovember 5, 1986
GrantedFebruary 22, 1989
Term endedMarch 26, 2006
Application numberEP 86302285
Classification (CPC)C07C7/13

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedMarch 26, 1986PublishedNov 5, 1986Patent grantedFeb 22, 1989Term endedMarch 26, 2006

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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