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Expired European patentEurope

Cooled lump from molten silicon and process for producing the same

EP 1783098 B1 · Applicant: Tokuyama Corporation

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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 May 23, 2005 and granted September 7, 2011. A European patent lasts at most 20 years from filing, so its term ended May 23, 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.
FiledMay 23, 2005
PublishedMay 9, 2007
GrantedSeptember 7, 2011
Term endedMay 23, 2025
Application numberEP 05741508
Classification (CPC)C30B11/00 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedMay 23, 2005PublishedMay 9, 2007Patent grantedSep 7, 2011Term endedMay 23, 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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