Photoelectroforming mandrel
CA 1268728 C · Owner: Ppg Industries, Inc. · Inventors: Kenworthy, James S.; Kozinski, Thomas G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electroforming mandrel with a nonconductive substrate and transparent conductive film is provided with a photoresist pattern. A cathodic connector is attached to the conductive film and an anodic connector connected to an electrode of the metal to be deposited on the mandrel. The metal is electrodeposited to form a metallic part on the mandrel.
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 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
- 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.