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Method and apparatus for starting the boiler of a solid-fuel fired power plant and ensuring the burning process of the fuel

EP 0453461 A1 · Applicant: IMATRAN VOIMA OY

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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 January 12, 1990 and never granted as a European patent. Had it been granted, its 20-year term would have ended January 12, 2010.
  • 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 July 12, 2015.
  • 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.
FiledJanuary 12, 1990
PublishedOctober 30, 1991
GrantedNever granted
Term endedJanuary 12, 2010
Application numberEP 90901589
Classification (CPC)F23D1/00 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedJan 12, 1990PublishedOct 30, 1991Term endedJan 12, 2010

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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