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Expired European patentEurope

Motor fuel

EP 0121089 B1 · Applicant: DEA Mineraloel Aktiengesellschaft

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Why it's free to use

  • Filed February 27, 1984 and granted May 31, 1989. A European patent lasts at most 20 years from filing, so its term ended February 27, 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 August 27, 2009.
  • 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.
FiledFebruary 27, 1984
PublishedOctober 10, 1984
GrantedMay 31, 1989
Term endedFebruary 27, 2004
Application numberEP 84102024
Classification (CPC)C10L1/02 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedFeb 27, 1984PublishedOct 10, 1984Patent grantedMay 31, 1989Term endedFeb 27, 2004

Sources & verification