Riboflavin glucoside
CA 2255099 A1 · Owner: Masuda, Setsuko · Inventors: Hoshino, Tatsuo; Masuda, Setsuko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing riboflavin glucoside comprises cultivating a microorganism belonging to the genus Bacillus such as Bacillus brevis, Bacillus cereus Bacillus circulans, Bacillus coagulans Bacillus licheniformis,Bacillus megaterium Bacillus pumilus or Bacillus subtilis, which is capable of producing riboflavin glucosides, in an aqueous medium containing a starch under aerobic conditions. Amongst the preferred strains are Bacillus subtilis RB50::pRF6960Ade+ and Bacillus subtilis RB50::pRF6960pRF93120Ade+. The so-produced riboflavin glucoside can be used as a more soluble substitute for riboflavin to prepare clear drinks and injection solutions.
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 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2020.
- 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.