Brightening agent microemulsion for use in electroplating of metals
CA 1252413 A · Owner: Macdermid Incorporated · Inventors: Barber, Loren L. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein are novel compositions for use as additives to electroplating baths, comprising a stable microemulsion formed from a functional chemical electroplating agent, which preferably is a brightening agent water and a surfactant component, the concentration of functional agent in the microemulsion being at least about 1% by weight, based on the total weight of components of the microemulsion.
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 April 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 11, 2006.
- 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.