Process for producing stable vitamin c
CA 1062612 A · Owner: Quaker Oats Company (The) · Inventors: Zielinski, Walter J.; Keyser, William L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is disclosed for producing a stable vitamin C product. The process comprising mixing specified amounts of vitamin C with an edible, liquefied, fatty material having the formula:, wherein R1 is an acyl radical derived from a saturated aliphatic acid having between 12 and 20 atoms per molecule and R2 and R3 are hydrogen or the same as R1, with the fatty material having a melting point of from 100°F. to 200°F.; mixing the mixture of vitamin C and fatty material with a nontoxic cooling agent which is chemically inert with respect to the vitamin C and fatty material, with the cooling agent having a temperature below 32°F. and with said mixing being sufficient to solidify the fatty …
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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 September 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 18, 1996.
- 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.