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Expired European patentEurope

Ceramics-type vacuum vessel and a method of manufacturing thereof

EP 0529665 B1 · Applicant: SUMITOMO ELECTRIC INDUSTRIES, LIMITED

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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 August 27, 1992 and granted March 6, 1996. A European patent lasts at most 20 years from filing, so its term ended August 27, 2012.
  • 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 February 27, 2018.
  • 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.
FiledAugust 27, 1992
PublishedMarch 3, 1993
GrantedMarch 6, 1996
Term endedAugust 27, 2012
Application numberEP 92114778
Classification (CPC)H05H7/14

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedAug 27, 1992PublishedMarch 3, 1993Patent grantedMarch 6, 1996Term endedAug 27, 2012

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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