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Expired European patentEurope

Data transmission with a bidirectionel data bus

EP 0154774 B1 · Applicant: Deutsche Thomson-Brandt 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 January 19, 1985 and granted June 24, 1992. A European patent lasts at most 20 years from filing, so its term ended January 19, 2005.
  • 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 July 19, 2010.
  • 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.
FiledJanuary 19, 1985
PublishedSeptember 18, 1985
GrantedJune 24, 1992
Term endedJanuary 19, 2005
Application numberEP 85100534
Classification (CPC)H04Q9/16 +1 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJan 19, 1985PublishedSep 18, 1985Patent grantedJune 24, 1992Term endedJan 19, 2005

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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