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Expired European patentEurope

Circuit arrangement for closing the remote power supply loop of a remote power supply installation

EP 0096743 B1 · Applicant: SIEMENS 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 January 20, 1981 and granted August 6, 1986. A European patent lasts at most 20 years from filing, so its term ended January 20, 2001.
  • 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 20, 2006.
  • 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 20, 1981
PublishedDecember 28, 1983
GrantedAugust 6, 1986
Term endedJanuary 20, 2001
Application numberEP 83104438
Classification (CPC)H04B3/44

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedJan 20, 1981PublishedDec 28, 1983Patent grantedAug 6, 1986Term endedJan 20, 2001

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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