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Expired European patentEurope

Simulator of fluid flow in field of flow entailing combustion or reaction

EP 0109810 B1 · Applicant: Nippon Furnace KOGYO KAISHA LTD.

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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 November 10, 1983 and granted May 10, 1989. A European patent lasts at most 20 years from filing, so its term ended November 10, 2003.
  • 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, 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.
FiledNovember 10, 1983
PublishedMay 30, 1984
GrantedMay 10, 1989
Term endedNovember 10, 2003
Application numberEP 83306878
Classification (CPC)G01M10/00 +1 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedNov 10, 1983PublishedMay 30, 1984Patent grantedMay 10, 1989Term endedNov 10, 2003

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