Process and apparatus for electrolytically removing protective layers from sheet metal substrate
CA 1338759 C · Owner: Chemcut Corporation · Inventors: Watson, Angus A.; Senge, F. Gerhard; Sanner, Kenneth E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus is provided to remove protective layers, such as various chromate coatings from metal sheets such as printed circuit boards, copper foils and the like in a, continuous manner while the articles are being conveyed along a predetermined path, by subjecting the same to an electric current, to electrolytically remove the layers.
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 December 3, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 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.