Patents Assigned to National Guard Products, Inc.
  • Intumescent seal
    Patent number: D417739
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: December 14, 1999
    Assignee: National Guard Products, Inc.
    Inventor: Charles F. Smith, Jr.
  • Intumescent seal
    Patent number: D418234
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: December 28, 1999
    Assignee: National Guard Products, Inc.
    Inventor: Charles F. Smith, Jr.
  • Intumescent seal
    Patent number: D418616
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: January 4, 2000
    Assignee: National Guard Products, Inc.
    Inventor: Charles F. Smith, Jr.