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Expired European patentEurope

Glass composition for a substrate, and substrate for plasma display made thereof

EP 0769481 B1 · Applicant: ASAHI GLASS COMPANY LTD.

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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 19, 1995 and granted January 26, 2000. A European patent lasts at most 20 years from filing, so its term ended October 19, 2015.
  • 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 19, 2021.
  • 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 19, 1995
PublishedApril 23, 1997
GrantedJanuary 26, 2000
Term endedOctober 19, 2015
Application numberEP 95116500
Classification (CPC)C03C3/087

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedOct 19, 1995PublishedApril 23, 1997Patent grantedJan 26, 2000Term endedOct 19, 2015

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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