Process for production of molybdenum-99 and management of waste therefrom
CA 2134264 C · Owner: Singh, Deonaraine · Inventors: Hancox, William T.; Labrie, Jean-Pierre; Harrison, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is taught for production of Mo-99 from uranium-235 and for managing waste produced therefrom. The process includes separation of the Mo-99 from irradiated uranium and solidification of the waste remaining after such separation. Because of the great reduction in the amounts of waste produced fromthe process over previous methods the process is of particular use in the large- scale production of Mo-99. Further the present process results in a reduced process time over previous processes and thereby offers a reduction in the loss of Mo-99 by decay.
Read the whole patent
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 October 25, 1994 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2016.
- 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.