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Expired European patentEurope

Process and vertical furnace for producing glass beads

EP 1203754 B1 · Applicant: L'air Liquide, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude

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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 30, 2001 and granted March 29, 2006. A European patent lasts at most 20 years from filing, so its term ended October 30, 2021.
  • 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.
FiledOctober 30, 2001
PublishedMay 8, 2002
GrantedMarch 29, 2006
Term endedOctober 30, 2021
Application numberEP 01402816
Classification (CPC)C03B19/1025

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedOct 30, 2001PublishedMay 8, 2002Patent grantedMarch 29, 2006Term endedOct 30, 2021

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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