Patents Assigned to Trindium Corporation of America
  • Tarnish-resistant copper alloy and method of preparation
    Patent number: 4493736
    Abstract: An alloy of copper, aluminum, nickel and indium is found useful in the fabrication of jewelry and dental appliances. The alloy resists tarnishing and has a gold-like appearance.
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: January 15, 1985
    Assignee: Trindium Corporation of America
    Inventor: William R. Adams