Patents Assigned to Earl O. Bergersen
  • Living hinge box with removable and interchangeable top and bottom
    Patent number: 4979925
    Abstract: An amusement device in the form of an openable box is provided wherein a top half and bottom half of the box are formed separately and a hinge member is also formed separately so that the box halves can be interchanged with other box halves to change the exterior appearance of the device. The hinge member may also include a noise maker which is activated by opening and closing of the two box halves to increase the amusement level of the device.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: December 25, 1990
    Assignee: Earl O. Bergersen
    Inventor: Earl O. Bergersen