Ptfe coating process
CA 1252005 A · Owner: Tribohesion Limited · Inventors: De Nagybaczon, Erno N.; Paterson, Alan C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thin, adherent coatings of PTFE are formed by rubbing dry, discrete particles of PTFE across the surface of a substrate, preferably on the surface of a fabric or felt polishing wheel. The particles are preferably smaller than 30 microns diameter. The peripheral speed of the wheel may be, for example from 5 m/sec to 100 m/sec.
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 April 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 2006.
- 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.