Method for solidifying waste containing radioactive iodine
CA 2210330 C · Owner: Doryokuro Kakunenryo Kaihatsu Jigyodan · Inventors: Kanzaki, Manabu; Fukumoto, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for solidifying a radioactive iodine-containing waste, in which volatilization of radioactive iodine outward can be suppressed during solidification and a solidified, waste having a high level of confinement of radioactive iodine and a long term stability can be obtained. The method comprised mixing a granular waste containing radioactive iodine, e.g. a granular iodine adsorbent having radioactive iodine adsorbed and collected thereon with a, metal powder, e.g. a copper powder having a corrosion, resistance in an environment of solidified waste disposal filling the resulting mixture in a metal capsule and, subjecting the whole to hot isostatic pressing to effect solidification. In …
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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 July 14, 1997 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2019.
- 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.