Metal cutting oil and method for using same
CA 1190215 A · Owner: Atlantic Richfield Company · Inventors: Apikos, Dominic A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved transparent lubricating oil composition, e.g. useful as a high severity metal cutting oil com-, prises a major amount of oil of lubricating viscosity; a minor effective amount of at least one sulfur-containing compound; and a minor, effective amount of elemental sulfur. Both the sulfur-containing compound and the sulfur are present in amounts to be soluble in the composition and the combination of sulfur-containing compound and elemental sulfur is present in an amount effective to improve the extreme pressure properties of the composition. Improved methods of metal working using such compositions are also disclosed.
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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
- 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.