Expired Canadian patentCanada
Radioactive propyl 2-iodospiroperidol and processes for the preparationthereof
CA 1287357 C · Owner: Nakatsuka, Iwao · Inventors: Nakatsuka, Iwao; Okuno, Masami
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radioactive propyl 2-iodospiroperidol of the formula:, wherein I* is a radioactive iodine atom. The radioactive compound has a high affinity for dopamine receptors and is very useful as a radioactive diagnostic agent and as a radiopharmaceutical.
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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 August 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 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.
FiledDecember 8, 1987
GrantedAugust 6, 1991
Term endedAugust 6, 2008
Patent numberCA 1287357 C
Classification (IPC)C07D471/10 +1 more
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.