Biodegradable vegetable oil compositions
CA 2498812 C · Owner: Garmier, William W. · Inventors: Rotondo, Adam W.; Garmier, William W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition, comprising; (A) at least one triglyceride oil of the formula (I), wherein R1, R2 and R3 are aliphatic hydrocarbyl groups containing from about 7 to about 23 carbon atoms and (A) an antioxidant comprising an amine of the formula (II), wherein R4 is formula (III) or an alpha naphthyl group (IV) and R5 is hydrogen, an alkaryl group or an aralkyl group R6 is an aryl group, an alkaryl group or an aralkyl group with the proviso that when R5 is , hydrogen then R4 is an aryl group and (2) a phenol of the formula (V) wherein R13 is an alkyl group containing from 1 up to about 24 carbon atoms and a is an integer of from 1 up to 5. Optionally the (A) and (B) composition , may …
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 2, 2003 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2025.
- 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.