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Expired European patentEurope

Apparatus and method for measuring the number of revolutions of internal-combustion engines

EP 0067804 B1 · Applicant: VOEST-ALPINE AUTOMOTIVE Gesellschaft m.b.H.

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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 April 30, 1982 and granted January 15, 1986. A European patent lasts at most 20 years from filing, so its term ended April 30, 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 October 30, 2007.
  • 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.
FiledApril 30, 1982
PublishedDecember 22, 1982
GrantedJanuary 15, 1986
Term endedApril 30, 2002
Application numberEP 82890063
Classification (CPC)F02D41/009 +2 more

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedApril 30, 1982PublishedDec 22, 1982Patent grantedJan 15, 1986Term endedApril 30, 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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