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Expired European patentEurope

Method and installation for recuperating heat in the surcharging air of an engine

EP 0886724 B1 · Applicant: Wärtsilä Technology Oy AB

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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 December 23, 1997 and granted April 3, 2002. A European patent lasts at most 20 years from filing, so its term ended December 23, 2017.
  • 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 June 23, 2023.
  • 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.
FiledDecember 23, 1997
PublishedApril 3, 2002
GrantedApril 3, 2002
Term endedDecember 23, 2017
Application numberEP 97952994
Classification (CPC)F02B29/00 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedDec 23, 1997PublishedApril 3, 2002Patent grantedApril 3, 2002Term endedDec 23, 2017

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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