Patents by Inventor Laura H. Spaziani

Laura H. Spaziani 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: 5429372
    Abstract: This invention provides a portable jig-saw puzzle work board comprising a rectangular, four-sided open frame having a fitted bottom interior work surface and a removable fitted transparent shatter-proof window that is securely and releasably positionable relative to the work surface such that puzzle pieces are held in place on the work surface when the window is in place and the position of the work board is changed.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: July 4, 1995
    Inventors: Laura H. Spaziani, Henrik R. Heikel