High dropping-point lithium-complex grease composition
CA 1197231 A · Owner: Shell Internationale Research Maatschappij B.V. · Inventors: Tanaka, Norimitsu; Okamoto, Toshihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High dropping-point lithium-complex grease composition having improved anti-noise properties, comprising a lubricating oil and the following components a) at least one lithium soap selected from the group consisting of the lithium salts of C10 to C34 fatty acids and C12 to C24 hydroxy fatty acids b) a lithium salt of aromatic hydroxy carboxylic acid and, c) a succinimide-type dispersant and/or metal salt detergent.
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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 November 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 26, 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.