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Expired European patentEurope

Video if amplifier with auxiliary if amplifier for intercarrier sound & aft

EP 0658297 B1 · Applicant: SAMSUNG ELECTRONICS CO., LTD.

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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 October 30, 1993 and granted September 29, 1999. A European patent lasts at most 20 years from filing, so its term ended October 30, 2013.
  • 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 30, 2019.
  • 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 30, 1993
PublishedJune 21, 1995
GrantedSeptember 29, 1999
Term endedOctober 30, 2013
Application numberEP 93924209
Classification (CPC)H04N5/50 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedOct 30, 1993PublishedJune 21, 1995Patent grantedSep 29, 1999Term endedOct 30, 2013

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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