Radioactive substance decontamination method and apparatus
CA 2373957 A1 · Owner: Hitachi, Ltd. · Inventors: Nagase, Makoto; Anazawa, Kazumi; Sakashita, Motoaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radioactive substance decontamination method and apparatus that decontaminates a metal member contaminated by radioactive substance in a short period of time. The apparatus includes; multiple reducing decontamination tanks having different radiation control values as the upper limit values for the radiation dose of the reducing decontamination agent stored inside; a carrier for immersing the metal member into the multiple reducing decontamination tanks and a washing tank. A tube is also included for transferring into the second reducing decontamination tank where the radiation control value is the second value that is higher than the first value, the reducing decontamination agent in the …
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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 February 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2024.
- 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.