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Expired European patentEurope

Gasifying combustion method and gasifying power generation method

EP 0468357 B1 · Applicant: MITSUBISHI JUKOGYO KABUSHIKI KAISHA

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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 July 17, 1991 and granted November 24, 1993. A European patent lasts at most 20 years from filing, so its term ended July 17, 2011.
  • 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 January 17, 2017.
  • 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.
FiledJuly 17, 1991
PublishedJanuary 29, 1992
GrantedNovember 24, 1993
Term endedJuly 17, 2011
Application numberEP 91111951
Classification (CPC)C10K1/002 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJuly 17, 1991PublishedJan 29, 1992Patent grantedNov 24, 1993Term endedJuly 17, 2011

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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