Compositions and methods for administering vitamin c
CA 1328809 C · Owner: Markham, Richard G. · Inventors: Markham, Richard G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition useful for administering Vitamin C to a subject comprises a compound having Vitamin C activity and at least one compound selected from the class consisting of the aldono-lactones and edible salts of Lthreonic, L-xylonic and L-lyxonic acids. High Vitamin C levels in the human body are established by orally administering to a human subject an effective amount of this composition.
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
- Granted April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
- 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.