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Expired European patentEurope

Circuit breaker for fault and conduction current protection

EP 0231732 B1 · Applicant: Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft

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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 10, 1986 and granted July 18, 1990. A European patent lasts at most 20 years from filing, so its term ended November 10, 2006.
  • 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 10, 2012.
  • 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 10, 1986
PublishedAugust 12, 1987
GrantedJuly 18, 1990
Term endedNovember 10, 2006
Application numberEP 86890307
Classification (CPC)H01H71/04 +1 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedNov 10, 1986PublishedAug 12, 1987Patent grantedJuly 18, 1990Term endedNov 10, 2006

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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