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Expired European patentEurope

A method and a device for improving combustion processes

EP 0707683 B1 · Applicant: ROBERTSSON, Bengt-Olov

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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.

Why it's free to use

  • Filed May 24, 1994 and granted January 27, 1999. A European patent lasts at most 20 years from filing, so its term ended May 24, 2014.
  • 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 November 24, 2019.
  • 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.
FiledMay 24, 1994
PublishedApril 24, 1996
GrantedJanuary 27, 1999
Term endedMay 24, 2014
Application numberEP 94917234
Classification (CPC)F02M25/10

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedMay 24, 1994PublishedApril 24, 1996Patent grantedJan 27, 1999Term endedMay 24, 2014

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