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Expired European patentEurope

Digital stereo demultiplexer

EP 1094613 B1 · Applicant: Sony Deutschland GmbH

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 October 20, 1999 and granted October 10, 2007. A European patent lasts at most 20 years from filing, so its term ended October 20, 2019.
  • 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 April 20, 2025.
  • 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.
FiledOctober 20, 1999
PublishedApril 25, 2001
GrantedOctober 10, 2007
Term endedOctober 20, 2019
Application numberEP 99120798
Classification (CPC)H04B1/1646

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedOct 20, 1999PublishedApril 25, 2001Patent grantedOct 10, 2007Term endedOct 20, 2019

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.