The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2007
Filed:
Dec. 03, 2004
Guocon Chen, Broomfield, CO (US);
Guocon Chen, Broomfield, CO (US);
Vapor Technologies, Inc., Boulder, CO (US);
Abstract
An article is coated with a multi-layer coating having the appearance of brass, nickel and stainless steel. The coating comprises a nickel or polymer base coat on the surface of said article, a chromium layer and vapor deposited on the chromium layer, a refractory metal nitride or nitride and oxide, or refractory metal alloy nitride or nitride and oxide that mimic the colors of brass, nickel and stainless steel. An oxide-containing strike layer comprised of nano-sized refractory metal crystals and/or preferentially oriented refractory metal phase with the refractory oxide for precipitation hardening. A refractory oxide layer intermediate the refractory metal strike layer and the stack layer comprised of alternative layers of refractory metal, substoichiometric refractory nitride and stoichiometric refractory nitride. This intermediate oxide layer acts as a non-conductive barrier to improve corrosion and pitting resistance. An ultra-thin refractory oxide top layer to provide further protection against corrosion.