Novel urethane-containing aminosteroid compounds
CA 2172495 A1 · Owner: Genain, Gilles Yves · Inventors: Genain, Gilles Yves; Yu, Chia-Nien; Boujo, Rachel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Urethane-containing aminosteroid compounds and the pharmaceutically-acceptable acid salts or esters thereof of general formula (I) wherein R1, R2, R3, R4 and R14, are defined in the description with R3 being a urethane-containing group. .GAMMA.
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 September 23, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2016.
- 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.