Preparation of compounds useful for the detection of hypoxia
CA 2379974 C · Owner: The Trustees Of The University Of Pennsylvania · Inventors: Dolbier, William R.; Koch, Cameron J.; Li, An-Rong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel 18F-fluorine compounds useful for non-invasive imaging techniques such as PET, for detecting tissue hypoxia, and methods for preparing them are disclosed. Novel intermediate compounds and methods for preparing them are also disclosed. Diagnostic kits useful in practicing the methods of claimed invention are also provided.
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 July 20, 2000 and granted October 25, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2022.
- 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.