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Expired European patentEurope

Storage structure for high-level radioactive materials using a dense asbestos cement

EP 0154770 B1 · Applicant: SOCIETE GENERALE POUR LES TECHNIQUES NOUVELLES S.G.N. Société anonyme dite:

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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 March 20, 1981 and granted February 8, 1989. A European patent lasts at most 20 years from filing, so its term ended March 20, 2001.
  • 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 September 20, 2006.
  • 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.
FiledMarch 20, 1981
PublishedSeptember 18, 1985
GrantedFebruary 8, 1989
Term endedMarch 20, 2001
Application numberEP 85100147
Classification (CPC)G21F9/36

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedMarch 20, 1981PublishedSep 18, 1985Patent grantedFeb 8, 1989Term endedMarch 20, 2001

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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