Electroplating process
CA 2047281 C · Owner: Enthone-Omi, Inc. · Inventors: Desthomas, Guy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for electrodespositing a conductive material on a substrate is disclosed which comprises movably mounting the substrate in a first conductive liquid electroplating bath which contains the conductive material, maintaining substantially constant conditions of temperature and liquid circulation in the first bath, passing an electric current through the substrate and the first bath so as to deposit the conductive material on the substrate, periodically transferring the substrate to a second liquid bath the, second bath containing a liquid of the same composition or lower concentrations of dissolved ingredients as compared to the first bath, weighing the substrate when immersed in the …
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 July 17, 1991 and granted January 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2013.
- 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.