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Expired European patentEurope

Device for controlling the total energy-consumption of an electricity consumer

EP 0464423 B1 · Applicant: Decher, Dieter

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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 June 14, 1991 and granted October 26, 1994. A European patent lasts at most 20 years from filing, so its term ended June 14, 2011.
  • 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 December 14, 2016.
  • 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.
FiledJune 14, 1991
PublishedJanuary 8, 1992
GrantedOctober 26, 1994
Term endedJune 14, 2011
Application numberEP 91109755
Classification (CPC)H02J3/17

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJune 14, 1991PublishedJan 8, 1992Patent grantedOct 26, 1994Term endedJune 14, 2011

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.