Palladium and palladium alloy plating
CA 1291440 C · Owner: Hendriks, Jan Jacques Marie · Inventors: Hendriks, Jan Jacques Marie; Lovie, John Richard; Somers, Gerardus Antonius
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The difficulties associated with electroplating palladium metal or alloy deposits from palladium diammino dichloride, palladium diammino dinitrite and palladium triammino sulphite baths can be avoided by plating from palladium baths containing oxalate. The palladium and oxalate may be in a single complex such, as palladium diammino oxalate, (Pd(NH3)2C2O4) palladium tetrammino oxalate (Pd(NH3)4C2O4) or an ammonium or alkali metal salt of palladium dioxalate (M2Pd(C2O4))2), where M represents an ammonium or alkali metal cation. Alloying metal ions may also be present as may an, electrolyte, a brightener and/or a stress reducer.
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 October 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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.