Method of plating and pretreating aluminium workpieces
CA 2440756 A1 · Owner: Wijenberg, Jacques Hubert Olga Joseph · Inventors: Wijenberg, Jacques Hubert Olga Joseph; Mooij, Joop Nicolaas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for applying a metal lazer onto at least one surface of an aluminium alloy workpiece,comprising the steps of pretreating said surface and applying the metal layer by plating wherein the pretreating , step comprises a non-electrolytic treatment by immersion of the workpiece in a single acidic solution, preferably a sulphuric acid solution having a , temperature of less than 100~C.
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 April 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2024.
- 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.