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Expired European patentEurope

SAS Addressing of surface discharge AC plasma display

EP 1801768 B1 · Applicant: Imaging Systems Technology, Inc.

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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 December 22, 2005 and granted November 17, 2010. A European patent lasts at most 20 years from filing, so its term ended December 22, 2025.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledDecember 22, 2005
PublishedJune 27, 2007
GrantedNovember 17, 2010
Term endedDecember 22, 2025
Application numberEP 05257981
Classification (CPC)G09G3/2022 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedDec 22, 2005PublishedJune 27, 2007Patent grantedNov 17, 2010Term endedDec 22, 2025

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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