Method and device for radiotherapy
CA 2523646 C · Owner: Kelson, Itzhak · Inventors: Arazi, Lior; Kelson, Itzhak
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radiotherapy method, comprising positioning a predetermined amount of a radionuclide selected from the group consisting of Radium-223 Radium-224, Radon-219 and Radon-220, in proximity to and/or within a tumor of a subject for a predetermined time period. The predetermined amount and the predetermined time period are selected sufficient for the radionuclide to administering a predetermined therapeutic dose of decay chain nuclei and alpha particles into the tumor.
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 April 29, 2004 and granted July 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2026.
- 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.