Boron-containing compositions, and lubricants and fuels containing same
CA 1339696 C · Owner: Schroeck, Calvin W. · Inventors: Koch, Frederick W.; Barrer, Daniel E.; Schroeck, Calvin W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of preparing boron-containing compositions is described which comprises reacting at least one hydroxy-substituted ester, amide or imide with a boron compound. Such boron-containing compositions are useful in lubricating oils and provide the lubricating oils with anti-wear and/or friction-reducing properties. The boron-containing compositions also are useful in fuel compositions.
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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 March 3, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2015.
- 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.