Lubricating compositions and methods utilizing hydroxy thioethers
CA 1103653 A · Owner: The Lubrizol Corporation · Inventors: Musser, Jerry L.; Koch, Frederick W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: LUBRICATING COMPOSITIONS AND METHODS UTILIZING HYDROXY THIOETHERS, Inventors: Jerry Lee Musser and Frederick William Koch Abstract of the Disclosure:, Lubricating compositions comprising a major amount of a lubricating oil and a minor amount of at least one additive of the formula:, wherein R is a hydrocarbon-based group of up to about 30 carbon atoms and having a valence of m + q; each R1 is independently selected from hydrogen and a hydrocarbon-based group of up to about 20 carbon atoms; x and y are independently from 2 to 5; z is from zero to 5; q is from zero to 4 and m is from 1 to 5 with the proviso that m + q is from 1 to 6, have increased resistance to oxidative degradation …
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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 June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 1998.
- 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
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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.