Process for the preparation of a ptfe dispersion as lubricating oil or lubricating oil additives
CA 1301145 C · Owner: Huth, Malte · Inventors: Huth, Malte
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for producing a dispersion of polytetrafluoroethlene in lubricating oil or a lubricating oil additive. A non-ionic wetting agent is mixed with ~ dispersion of polytetrafluoroethylene in oil, and the resulting mixture is subjected to a heat treatment in several zones starting with a shock treatment, and followed by several zones of progressively lower temperature.
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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 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.