Lubricant corrosion inhibitors
CA 1067687 A · Owner: Ethyl Cooper Limited · Inventors: Davis, Bryan T.; Moat, Nicholas W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A motor oil is provided having enhanced antirusting qualities imparted by minor amounts of an additive comprising in the weight proportions of 1/2 to 2/1 a component A which is, an oil-soluble basic organic nitrogen compound having a total base member of at least 300 and which is soluble in or hydrolyzed by water to give an aqueous system of pH at least 9.5 and a, component B which is an alkyl or alkenyl substituted succinic acid having from about 8 to 30 carbon atoms.
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 December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 1996.
- 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.