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Expired European patentEurope

System for deemphasis and reemphasis of high frequencies in a video signal

EP 0698997 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 25, 1991 and granted May 10, 2000. A European patent lasts at most 20 years from filing, so its term ended October 25, 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 April 25, 2017.
  • 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 25, 1991
PublishedFebruary 28, 1996
GrantedMay 10, 2000
Term endedOctober 25, 2011
Application numberEP 95116314
Classification (CPC)H04N9/7976 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedOct 25, 1991PublishedFeb 28, 1996Patent grantedMay 10, 2000Term endedOct 25, 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.