Patents Assigned to Delta Design Development Limited
  • Box frame system
    Patent number: 5941616
    Abstract: A system for constructing modular furniture from one or more file boxes. The system includes a rigid rectangular frame having top and bottom faces adapted to engage the file boxes. The top face has a rim extending up from the top face for surrounding a file box mounted on the top face. The bottom face has a rim extending down from the bottom face for surrounding a file box mounted on the bottom face.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: August 24, 1999
    Assignee: Delta Design Development Limited
    Inventor: Paul R. Billingham