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Expired European patentEurope

Process for measuring erratic running in an internal combustion engine and application of said process

EP 0474652 B1 · Applicant: ROBERT BOSCH 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 May 14, 1990 and granted August 3, 1994. A European patent lasts at most 20 years from filing, so its term ended May 14, 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 November 14, 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.
FiledMay 14, 1990
PublishedMarch 18, 1992
GrantedAugust 3, 1994
Term endedMay 14, 2010
Application numberEP 90906883
Classification (CPC)G01M15/11

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedMay 14, 1990PublishedMarch 18, 1992Patent grantedAug 3, 1994Term endedMay 14, 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

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