Patents by Inventor Argyle Campbell

Argyle Campbell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5551774
    Abstract: A food bar is formed of a double walled, insulated open chamber and a support grid disposed within the chamber. The support grid is formed of divider bars and cross rails arranged in a pattern across the open chamber of the food bar to divide the opening into compartments for support of food containers and panel inserts. The divider bars have a substantially U-shaped cross section and have spaced apart openings along the top. The cross rails have a substantially U-shaped cross section and have ends which terminate in a downward flange adapted to be received in the openings of the divider bar. A clear panel of material is preferably suspended above the food bar to act as a "sneeze bar".
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: September 3, 1996
    Assignee: Cambro Manufacturing Company
    Inventors: Argyle Campbell, Larry D. Maddux
  • Patent number: D352202
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: November 8, 1994
    Assignee: Cambro Manufacturing Company
    Inventors: Argyle Campbell, Ben Dawson
  • Patent number: D352203
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: November 8, 1994
    Assignee: Cambro Manufacturing Company
    Inventors: Argyle Campbell, Ben Dawson
  • Patent number: D355333
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: February 14, 1995
    Assignee: Cambro Manufacturing Company
    Inventor: Argyle Campbell
  • Patent number: D355517
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: February 14, 1995
    Assignee: Cambro Manufacturing Co.
    Inventors: Argyle Campbell, Larry D. Maddux
  • Patent number: D362101
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: September 5, 1995
    Assignee: Cambro Manufacturing Company
    Inventors: Larry D. Maddux, Argyle Campbell
  • Patent number: D362102
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: September 5, 1995
    Assignee: Cambro Manufacturing Company
    Inventors: Argyle Campbell, Larry D. Maddux
  • Patent number: D364764
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: December 5, 1995
    Assignee: Cambro Manufacturing Company
    Inventors: Argyle Campbell, Larry D. Maddux
  • Patent number: D366581
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: January 30, 1996
    Assignee: Cambro Manufacturing Company
    Inventors: Argyle Campbell, Larry D. Maddux
  • Patent number: D370327
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: May 28, 1996
    Assignee: Cambro Manufacturing Company
    Inventors: Argyle Campbell, Larry D. Maddux