Patents by Inventor Beniamino Silberstein

Beniamino Silberstein 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).

  • Composing plane for two-sided puzzles
    Patent number: 4984798
    Abstract: An assembly and display device for the playing pieces of a two sided puzzle having first and second sheets formed from a transparent material in which the sheets are provided with complimentary first and second sidewalls along at least two contiguous sides and are further provided with a spring mechanism for fastening the sheets in a closed position. A support member is fixable to the sheets and serves to hold the device in an upright fashion for displaying the completed puzzle.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: January 15, 1991
    Inventor: Beniamino Silberstein