Load-carrying grease
CA 1310315 C · Owner: Exxon Research And Engineering Company · Inventors: Alexander, A. Gordon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A grease composition having improved loadcarrying capability is disclosed. More specifically the load-carrying capability of a grease is increased when a polyhydric alcohol having at least three hydroxy groups and at least two metal hydrocarbylthiophosphate compounds in which the metal is different in at least two compounds are incorporated into said grease. Glycerol is a preferred polyhydric alcohol while antimony dialkyldithiophosohate and zinc dialkyldithiophosphate are preferred hydrocarbylthiophosphate compounds.
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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 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.