Recovery of tritium and deuterium from their oxides and intermetallic compound useful therein
CA 2043626 C · Owner: Boffito, Claudio · Inventors: Boffito, Claudio; Bolognesi, Massimo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a process for the recovery of deuterium and tritium from their oxides, such has heavy water and tritiated water, comprising the steps of reacting the oxides of deuterium and tritium with an intermetallic compound having a formula ZrM2 where M is a transition metal chosen from the group comprising Cr, Mn, Fe, Co and Ni such that it sorbs oxygen and released deuterium and tritium. The reaction preferably occurs by contacting the impure gas with the ZrM2 alloy as defined above in the form of a compressed powder. A preferred alloy is the intermetallic ternary compound ZrMnFe.
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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
- Filed May 31, 1991 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2013.
- 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
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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.