Patents Assigned to International Tropic-Cal, Inc.
  • Eyeglass retaining cord with adjustable slide
    Patent number: D291894
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: September 15, 1987
    Assignee: International Tropic-Cal, Inc.
    Inventors: George Weisenfeld, David Halpern
  • Sunglasses
    Patent number: D322081
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: December 3, 1991
    Assignee: International Tropic-Cal, Inc.
    Inventor: Ronald W. Longsdorf