Liquid preparations of fudosteine
CA 2448083 C · Owner: Hisamitsu Medical Co. Ltd. · Inventors: Fushimi, Masunari; Imamori, Katsumi; Murata, Yutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Liquid drug preparations characterized by containing fudosteine and an acid together with a sweetener such as sugar alcohol, trehalose or a sweetener having a high degree of sweetness. These liquid drug preparations are fudosteine-containing liquid drug preparations which are free from color change or sedimentation upon prolonged storage and can be easily taken.
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 May 24, 2002 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2024.
- 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.