Method of powder coating
CA 2432836 A1 · Owner: Langlois, Robert W. · Inventors: Langlois, Robert W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of powder coating thermo powder resins to, non-conductive plastic substrates in particular, to polyamide materials and other , non-conductive plastic substrates. It discloses a method for powder coating a non-conductive, plastic substrate comprising the following steps: (a) cleaning said substrates to remove any contaminants or mold release agents therefrom;, (b) applying an adhesive/sealer to said substrate; (c) curing said adhesive/sealer by means of heat; (d) applying a thermosetting powder to the hot substrate; and (e) curing said thermosetting powder with heat.
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
- Filed June 13, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2025.
- 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.