Synergistic combination of additives useful in power transmitting compositions
CA 1330340 C · Owner: Gutierrez, Antonio · Inventors: Gutierrez, Antonio; Ryer, Jack
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mutually compatible combination of additives and their use to impart anti-wear, oxidation inhibition and friction modification to power transmission compositions, particularly automatic transmission fluids, is disclosed. The additives comprise an organic phosphite ester such as triphenyl phosphite and a hydroxyl amine compound, such as that having the formula, preferably in combination with a dispersant such as a polyisobutenyl succinimide or a borated derivative thereof.
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 June 21, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 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.