Patents Assigned to Dalow Industries Inc.
  • 14K gold alloy with silver, copper, zinc and cobalt
    Patent number: 5749979
    Abstract: A 14K gold alloy includes by weight percentages about 58.5 to 58.8% gold, 12.8 to 14.4% silver, 22.9 to 24.8% copper, 3.5 to 4.1% zinc and 0.2 to 0.5% cobalt. The alloy exhibits a relatively large uniform, fine grain size and may be repetitively hardened and softened as desired. The brightness of the alloy is exceptional and the color, which is quite distinctive among 14K gold alloys, is similar to rich colored 18K gold alloys.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: May 12, 1998
    Assignee: Dalow Industries Inc.
    Inventors: Richard Carrano, Mark C. Hanna