Expired European patentEurope
Process for separating uranium and plutonium present in an aqueous medium resulting from the reprocessing of irradiated nuclear fuels, by means of crown-ethers
EP 0347315 B1 · Applicant: COMPAGNIE GENERALE DES MATIERES NUCLEAIRES (COGEMA)
Overview
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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.
Why it's free to use
- Filed June 14, 1989 and granted September 29, 1993. A European patent lasts at most 20 years from filing, so its term ended June 14, 2009.
- 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 December 14, 2014.
- 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.
FiledJune 14, 1989
PublishedDecember 20, 1989
GrantedSeptember 29, 1993
Term endedJune 14, 2009
Application numberEP 89401664
Classification (CPC)G21F9/04
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.