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Expired European patentEurope

Apparatus for manufacturing a single crystal

EP 0134680 B1 · Applicant: KABUSHIKI KAISHA TOSHIBA

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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 July 24, 1984 and granted December 18, 1991. A European patent lasts at most 20 years from filing, so its term ended July 24, 2004.
  • 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 January 24, 2010.
  • 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.
FiledJuly 24, 1984
PublishedMarch 20, 1985
GrantedDecember 18, 1991
Term endedJuly 24, 2004
Application numberEP 84305036
Classification (CPC)C30B15/26

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedJuly 24, 1984PublishedMarch 20, 1985Patent grantedDec 18, 1991Term endedJuly 24, 2004

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.