Stable vitamin b6 derivative
CA 2544574 C · Owner: Ito, Hajime · Inventors: Wada, Koichi; Morimoto, Hiroshi; Shimmoto, Yukiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound represented by the following general formula (I) or a salt thereof. (see formula I) wherein R1 represents a glycosyl group a phosphate group, or a cyclic , phosphate group bound to R2; R2 represents -CH2OH, -CHO -CH2NH2, -CH2-amino acid residue, or - CH2-, OPO2H; and R3 represents hydrogen atom or -PO3H2, and a composition for , cosmetics medicaments, foodstuffs, and/or feeds containing the aforementioned compound or a salt , thereof.
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 September 30, 2004 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 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.