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Expired European patentEurope

Apparatus and method for removing offset and shading from a video signal

EP 1168827 B1 · Applicant: NORTHROP GRUMMAN CORPORATION

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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 18, 1996 and granted December 22, 2004. A European patent lasts at most 20 years from filing, so its term ended October 18, 2016.
  • 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 18, 2022.
  • 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 18, 1996
PublishedJanuary 2, 2002
GrantedDecember 22, 2004
Term endedOctober 18, 2016
Application numberEP 01119435
Classification (CPC)H04N17/002 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedOct 18, 1996PublishedJan 2, 2002Patent grantedDec 22, 2004Term endedOct 18, 2016

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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