Acid zinc electroplating process and composition
CA 1134775 A · Owner: M & T Chemicals Inc. · Inventors: Arcilesi, Donald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a method of producing lustrous to brilliant zinc electrodeposits, which comprises passing current from a zinc anode to a metal cathode for a time period sufficient to deposit a lustrous to brilliant zinc electrodeposit upon said cathode. The current passes through an aqueous acidic bath composition containing at least one zinc compound providing zinc cations for electroplating zinc. The zinc compound is selected from the group consisting of zinc sulfate zinc chloride and zinc, sulfamate. Chloride anions are added as salts of bath compatible cations excepting ammonium; in the absence of complexing or chelating agents of organic nature; and containing, as cooperating …
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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 November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
- 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.