Substituted 2-phenyl benzofurans as estrogenic agents
CA 2470352 A1 · Owner: Kaufman, David Harry · Inventors: Morris, Robert Lester; Albert, Leo Massillamoney; Harris, Heather Anne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides estrogen receptor modulators of formula I having the , structure (formula I) wherein P and P~ are each independently, hydrogen, alkyl of 1-6 carbon atoms or acyl of 2-7 carbon atoms; X is hydrogen or halogen; R is hydrogen, alkyl of 1-6 carbon atoms halogen, -CN, or-CHO; R~ is , alkoxy of 1-6 carbon atoms or cyanoalkyl having 1-6 carbon atoms in the alkyl moiety; or a pharmaceutically acceptable salt thereof.
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 December 17, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2024.
- 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.