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Expired European patentEurope

Process for upgrading fischer-tropsch olefins

EP 0188872 B1 · Applicant: MOBIL OIL 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 October 17, 1985 and granted March 29, 1989. A European patent lasts at most 20 years from filing, so its term ended October 17, 2005.
  • 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 17, 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.
FiledOctober 17, 1985
PublishedJuly 30, 1986
GrantedMarch 29, 1989
Term endedOctober 17, 2005
Application numberEP 85307481
Classification (CPC)C10G3/50 +2 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedOct 17, 1985PublishedJuly 30, 1986Patent grantedMarch 29, 1989Term endedOct 17, 2005

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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