Anti-oxidant systems
CA 2273391 A1 · Owner: Dee, Kennie U. · Inventors: Latoga, Gerard A.; Dee, Kennie U.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fatty acid-based composition, such as soaps which include at least one, neutralized fatty acid a phenol group-containing compound, and an antioxidant, system which includes vitamin E or a water soluble ester thereof and a C-2 or , C-3, substituted vitamin C ester are provided. Additionally a method of preparing , such, compositions is provided. The method includes neutralizing at least one melted fatty acid; adding an alkanolamine, a phenol group-containing compound and an, anti-oxidant system which includes vitamin E or a water soluble ester thereof and, a C-2 or C-3 substituted vitamin C ester to the neutralized melted fatty acid to, form a pourable composition; and cooling the pourable …
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 31, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 31, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2021.
- 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.