Caprazene compounds and derivatives thereof
CA 2831202 C · Owner: Meiji Seika Pharma Co. Ltd. · Inventors: Miyake, Toshiaki; Igarashi, Masayuki; Takahashi, Yoshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Caprazol which is the compound represented by the following formula (IV) (See formula IV), wherein Me is methyl group and a 5"-N-alkoxycarbonyl or 5"-N-, aralkyloxycarbonyl derivative thereof, and caprazol amide derivatives caprazole amide-ester , derivatives, and caprazol ester derivatives, are provided. The novel caprazol and derivatives exhibit , excellent antibacterial activities against a variety of bacteria including , acid-fast bacteria.
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 January 30, 2004 and granted September 27, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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.