Patents Assigned to American Desk Manufacturing Co.
  • Stadium, gymnasium or like chair
    Patent number: 4133579
    Abstract: This disclosure relates to a chair and, particularly, a seat therefor, which includes top and bottom walls merging with front, rear and a pair of opposite side walls, the seat being of a generally one-piece homogenous plastic blow-molded construction with a parting line along the front, rear and pair of opposite side walls, and portions of the top and bottom walls being compression fused to each other adjacent the side walls thereby forming reinforced areas adapted for securement to a conventional chair seat support bracket.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: January 9, 1979
    Assignee: American Desk Manufacturing Co.
    Inventor: Billy J. Springfield
  • Chair seat
    Patent number: D252904
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: September 18, 1979
    Assignee: American Desk Manufacturing Co.
    Inventor: Billy J. Springfield
  • Chair back
    Patent number: D252905
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: September 18, 1979
    Assignee: American Desk Manufacturing Co.
    Inventor: Billy J. Springfield