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Expired European patentEurope

Steam temperature control with overfire air firing

EP 0071815 B1 · Applicant: COMBUSTION ENGINEERING, INC.

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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 July 19, 1982 and granted September 24, 1986. A European patent lasts at most 20 years from filing, so its term ended July 19, 2002.
  • 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 19, 2008.
  • 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 19, 1982
PublishedFebruary 16, 1983
GrantedSeptember 24, 1986
Term endedJuly 19, 2002
Application numberEP 82106503
Classification (CPC)F22G5/02

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedJuly 19, 1982PublishedFeb 16, 1983Patent grantedSep 24, 1986Term endedJuly 19, 2002

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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