Amide compounds
CA 2006090 A1 · Owner: Tokuyama Soda Kabushiki Kaisha · Inventors: Kato, Shozo; Okamoto, Hidenori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An amide compound represented by the following general formula (I), . . . (I), wherein R1 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted furyl group or a, substituted or unsubstituted thienyl group; R2 is a halogen atom; R3 is a hydrogen atom, an alkyl group of 1-6 carbon atoms, or a halogen atom; R4 and R5 which may be the same or different, are a substituted or unsubstituted alkyl group of 1-12 carbon atoms a sub-, stituted or unsubstituted alkenyl group of 2-12 carbon atoms, or a substituted or unsubstituted phenyl group: and an antimicrobial agent containing as an active ingredient the said amide compound.
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 20, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2011.
- 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.