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Expired European patentEurope

Method of cleaning aggregates of a power plant

EP 0776707 B1 · Applicant: ASEA BROWN BOVERI AG

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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 November 13, 1996 and granted December 20, 2000. A European patent lasts at most 20 years from filing, so its term ended November 13, 2016.
  • 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 13, 2022.
  • 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 13, 1996
PublishedJune 4, 1997
GrantedDecember 20, 2000
Term endedNovember 13, 2016
Application numberEP 96810785
Classification (CPC)F28G5/00 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedNov 13, 1996PublishedJune 4, 1997Patent grantedDec 20, 2000Term endedNov 13, 2016

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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