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Expired European patentEurope

Color display system and tube having an electron gun with dual electrode modulation

EP 0366245 B1 · Applicant: RCA Thomson Licensing 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 September 8, 1989 and granted December 7, 1994. A European patent lasts at most 20 years from filing, so its term ended September 8, 2009.
  • 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 March 8, 2015.
  • 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.
FiledSeptember 8, 1989
PublishedMay 2, 1990
GrantedDecember 7, 1994
Term endedSeptember 8, 2009
Application numberEP 89309148
Classification (CPC)H01J29/503

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedSep 8, 1989PublishedMay 2, 1990Patent grantedDec 7, 1994Term endedSep 8, 2009

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.