Substituted cycloalkylidene compounds
CA 2533812 C · Owner: Navas, Frank Iii · Inventors: Miller, Aaron Bayne; Navas, Frank Iii; Katamreddy, Subba Reddy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel compounds with a variety of therapeutic uses, more particularly novel substituted cyclic alkylidene compounds that are particularly useful for selective estrogen receptor modulation. Formula (I) including salts, solvates, and pharmacologically functional derivatives thereof wherein R1is OH; each of R2 and R4 independently are selected from OH alkyl, or halogen; each of p and q independently are selected from 0 1, or 2; , R3 is -(Y)z-R6; z is 0 or 1; Y is -C=C- or CR6=CR1-; X is -(CH2)n- where n is 0, 1, 2, or 3, -C(R9)2-, -O-,or -S-.
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 July 27, 2004 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2026.
- 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.