Expired Canadian patentCanada
Anti-androgen compounds
CA 1113105 A · Owner: Eli Lilly And Company · Inventors: Flaugh, Michael E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention, This invention provides novel dihydro- and hexahydrobenzopyranoxanthenones which are useful as antiandrogens.
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 November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 7, 1978
GrantedNovember 24, 1981
Term endedNovember 24, 1998
Patent numberCA 1113105 A
Classification (IPC)C07D493/04 +2 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.