Metal containing lubricant compositions
CA 1283093 C · Owner: Amoco Corporation · Inventors: Hunt, Mack Williss; Kennedy, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metal-containing lubricant composition containing a copper overbased metal-containing composition is disclosed which improves high speed, high temperature operation of gasoline and diesel engines. The copper overbased metal-containing composition acts as a dispersant/detergent and oxidation and corrosion inhibitor.
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 April 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2008.
- 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.