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Expired European patentEurope

Process for separating great amounts of uranium from small amounts of fission products which are present in aqueous basic solutions containing carbonate

EP 0170796 B1 · Applicant: KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH

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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 13, 1985 and granted April 14, 1993. A European patent lasts at most 20 years from filing, so its term ended May 13, 2005.
  • 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 November 13, 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.
FiledMay 13, 1985
PublishedFebruary 12, 1986
GrantedApril 14, 1993
Term endedMay 13, 2005
Application numberEP 85105864
Classification (CPC)G21F9/12

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedMay 13, 1985PublishedFeb 12, 1986Patent grantedApril 14, 1993Term endedMay 13, 2005

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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