Antioxidants and antioxidant boosters capable of producing hydroperoxyl radicals
CA 2264553 A1 · Owner: Brois, Stanley J. · Inventors: Schlosberg, Richard H.; Brois, Stanley J.; Aldrich, Haven S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antioxydant which comprises a primary aliphatic hydroxyl group linked to an organic backbone such that upon oxidation a hydroperoxyl moiety capable of boosting the efficacy of free radical scavengers and hydroperoxide decomposer type antioxidants is generated in situ. The antioxidant is preferably: (a) a high hydroxyl polyol ester having between about 1-35 % unconverted hydroxyl groups; (b) the reaction product of polyol and at least one acid selected from the group consisting of: phenolic acids aromatic amine acids, phosphoric , acids and sulfuric acids; (c) the reaction product of (b) wherein the unconverted hydroxyl group is reacted with a facile leaving group thereby , …
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 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2019.
- 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.