Pharmaceutical compounds
CA 2204082 A1 · Owner: Hotten, Terrence Michael · Inventors: Gilmore, Jeremy; Urquhart, Michael William John; Ambler, Samantha Jayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pharmaceutical compound having the formula (see fig. I), in which, R1 is alkyl, -SO2R14 where R14 is alkyl optionally, substituted aryl or optionally substituted heteroaryl R2 is hydrogen, alkyl optionally substituted with one or more hydroxy or C1-4 alkoxy groups, optionally substituted aryl, optionally substituted heteroaryl -OR15, -P(O)(OR15) (OR16) or -NR15R16 where R15 and R16 are each hydrogen or alkyl, or -SO2R17 where R17 is hydrogen alkyl, optionally substituted aryl or optionally substituted heteroaryl, R3 is hydrogen, -CN, -CO2R18 -CONR18R19,-CH18~CHR19, -C~CR18, -OCH2CO.R18 -SO2R18 -CH2OR18, -CH2OCO.R18, -CH2NHCOR18 -CH2N(COR18)2, -CHO, -OR18, -CH2NR18R19 -CH2OR18, -CH=NR18 …
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 April 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2019.
- 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.