Process for high speed nickel and gold electroplate system
CA 1162505 A · Owner: Hooker Chemicals & Plastics Corp. · Inventors: Rosegren, Donald R.; Mayer, Linda J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved corrosion resistance of cobalt-hardened gold plating is achieved by the electrodeposition of a ductile, low-stress nickel coating on the substrate prior to the electrodeposition of the cobalt-hardened gold plating. The resulting plated substrate or workpiece is also described and claimed.
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 February 21, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 2001.
- 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.