Method of dyeing a pattern like the grain of wood on the surface of an aluminum
CA 1073159 A · Owner: Kabushiki Kaisha Hidan Seisakusho · Inventors: Hidan, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of dyeing a pattern analogous to the grain of wood onto the surface of a blank consisting of aluminum or alloys thereof having a film of anodic oxidation. A coloring composition containing oil dye is dropped on a water surface to diffuse the coloring composition on the water surface. The surface to be dyed of the blank is brought into contact in flat or inclined fashion with the diffused water surface to thereby absorb coloring components into pin holes in the surface. The water surface is a stationary water surface or a flowing water surface.
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 March 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 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.