Production of metallic patterns
CA 1333578 C · Owner: Irving, Edward · Inventors: Demmer, Christopher George; Irving, Edward; Banks, Christopher Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a metallic pattern on a substrate surface, the substrate surface comprising bare metal in predetermined areas and metal coated by a first resist in remaining areas which method comprises: (i) protecting the bare metal by electrodepositing a resinous film thereon; (ii) removing the first resist from said remaining areas using a solvent which does not remove the electrodeposited film; (iii) etching the metal exposed in (ii) using an etchant which does not remove the electrodeposited film; (iv) forming a layer of a second resist in a predetermined pattern over the electrodeposited film thereby, leaving areas of the electrodeposited film uncovered by the resist; and (v) …
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 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 20, 2011.
- 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.