Phosphorus-containing lubricant and functional fluid compositions
CA 1304072 C · Owner: Di Biase, Stephen A. · Inventors: Di Biase, Stephen A.; Schwind, James J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: PHOSPHORUS-CONTAINING LUBRICANT AND FUNCTIONAL FLUID COMPOSITIONS, Abstract of the Disclosure This invention is directed to lubricating oil and functional fluid compositions having improved high temperature stability and which contain at least one phosphorus-containing composition and at least one oilsoluble nitrogen-containing composition. More particularly; the lubricating and functional fluid compositions of the present invention comprise, (A) a major amount of an oil of lubricating viscosity, and a minor amount of, (B-1) at least one soluble amine salt of at least one substituted phosphoric acid, composition characterized by the formula (I), wherein, R1 is hydrogen or a …
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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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
- 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.