Radioiodine benzodiazepine derivatives
CA 1318668 C · Owner: Nihon Medi-Physics Co. Ltd. · Inventors: Carmann, Heinz; Hunkeler, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Radioiodine 5,6-dihydro-5-methyl-6-oxo-4H-imidazo1,5-a- 1,4benzodiazepine derivativesof the formula I, wherein I* is a radioactive iodine and R is an alkyl group with 1-4 C-atoms, and their use in diagnosing diseases and disorders of the brain through their ability to image the brain.
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 June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 2010.
- 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.