Preparation of __ tc radiopharmaceuticals
CA 1286086 C · Owner: Bonnyman, John · Inventors: Baldas, John; Bonnyman, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the formula I: R+99?TcNX4- I, wherein R+ represents a cation and X represents a halo group, are prepared by reaction with an azide compound in the presence of a hydrohalic acid. The compounds are useful in production of 99?Tc-labelledradiopharmaceuticals by reaction with ligands and monoclonal antibodies or antibody fractions.
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
- Granted July 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2008.
- 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.