Patent Yard Sign in
Expired European patentEurope

Digital correlation indicator

EP 0200420 B1 · Applicant: RCA Thomson Licensing Corporation

EPO PDF

Overview

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

Read the whole patent

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.

Why it's free to use

  • Filed April 16, 1986 and granted August 11, 1993. A European patent lasts at most 20 years from filing, so its term ended April 16, 2006.
  • 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 October 16, 2011.
  • 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.
FiledApril 16, 1986
PublishedNovember 5, 1986
GrantedAugust 11, 1993
Term endedApril 16, 2006
Application numberEP 86302845
Classification (CPC)H04N9/78

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedApril 16, 1986PublishedNov 5, 1986Patent grantedAug 11, 1993Term endedApril 16, 2006

Sources & verification