Roughening aluminium plate electrochemically in neutral salt solution
CA 1077433 A · Owner: Hoechst Aktiengesellschaft · Inventors: Raether, Siegfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the Manufacture of Aluminum Supports for Planographic Printing Plates by Electrochemical Roughening of the Plate Surfaces Abstract of the Disclosure, This invention relates to an improvement in the process for the manufacture of aluminum supports for planographic printing plates by electrochemical roughening of the surfaces in agitated aqueous electrolyte solutions, the improvement comprising that the electrolyte used is a neutral aqueous salt solution.
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 May 13, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 1997.
- 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.