Patents by Inventor Bruce C. Vierstra

Bruce C. Vierstra 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).

  • 6-bar erecting system
    Patent number: 5151728
    Abstract: A compact folding camera having a plurality of housing members which are mounted for movement between folded and erect positions includes a six-bar, revolute joint, erecting system for coordinating movement of these movable housing members between their folded and erect positions.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: September 29, 1992
    Assignee: Polaroid Corporation
    Inventors: Donald H. Hendry, Bruce K. Johnson, Joanne M. Krawczyk, Bruce C. Vierstra