Technetium-99m generator system
CA 2255573 C · Owner: Knapp, Furn F. Jr. · Inventors: Knapp, Furn F. Jr.; Mirzadeh, Saed; Collins, Emory D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A 99Mo/99mTc generator system includes a sorbent column (11) loaded with a composition containing 99Mo. The sorbent column (11) has an effluent end (31) in fluid communication with an anion-exchange column (15) for concentrating 99mTc eluted from the sorbent column (11). A method of preparing a concentrated solution of 99mTc includes the general steps of a) providing a sorbent column (11) loaded with a composition containing 99Mo the sorbent , column having an effluent end (31) in fluid communication with an anionexchange column (15); b) eluting the sorbent column (11) with a salt solution to elute 99mTc from the sorbent and to trap and concentrate the eluted 99mTc on 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 December 12, 1996 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2018.
- 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.