Antimicrobial phenazine compounds
CA 2247348 A1 · Owner: Zoutman, Dick · Inventors: Brien, James; Marks, Gerald; Zoutman, Dick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Phenazine compounds having antimicrobial activity are described. The phenazine compounds can be phenazine N-oxides, including phenazine-5,10-dioxides which , may optionally be substituted at one or more positions preferably the 7- , and/or 8-positions of the phenazine nucleus. Also described are methods for treating microbial infections, and methods for inhibiting the growth of a microbial cell. The microbes treated or inhibited can be multidrug resistant. These compounds also inhibit the growth of tumor cells.
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 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 24, 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.