Method for dissolving hard-to-dissolve thorium and/or plutonium oxides
CA 1186902 A · Owner: Alkem G.M.B.H. · Inventors: Rosenkranz, Wolfgang; Ledebrink, Friedrich-Wilhelm; Stoll, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for dissolving hard-to-dissolve thorium and/or plutonium oxides, especially dioxides such as ThO2 PuO2 or (U/Pu)O2 mixed oxides by, heating the oxides in a hermetically sealed vessel in fluoride-free nitric acid. The use of a gas atmosphere containing oxygen in the sealed vessel is advantageous.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 14, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.