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Expired European patentEurope

Thrust reverser for a propfan engine

EP 0561791 B1 · Applicant: MTU MOTOREN- UND TURBINEN-UNION MÜNCHEN GMBH

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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 October 29, 1991 and granted August 17, 1994. A European patent lasts at most 20 years from filing, so its term ended October 29, 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 April 29, 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.
FiledOctober 29, 1991
PublishedSeptember 29, 1993
GrantedAugust 17, 1994
Term endedOctober 29, 2011
Application numberEP 91918014
Classification (CPC)F02K1/66 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedOct 29, 1991PublishedSep 29, 1993Patent grantedAug 17, 1994Term endedOct 29, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.