Radioactive phosphorous labeling of proteins for targeted radiotherapy
CA 2200855 C · Owner: Karacay, Habibe · Inventors: Karacay, Habibe; Hansen, Hans J.; Griffiths, Gary L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
32P- and 33P-labeled proteins which are useful for radiotherapy are prepared by stably linking 32P- or 33P- containing molecules to targeting proteins in such a way that the targeting protein retains the ability to bind to a celular target. Methods for preparing the labeled proteins and their use in methods of radiotherapy are described.
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 September 21, 1995 and granted April 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2017.
- 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.