Patents by Inventor Mark B. Spiegel

Mark B. Spiegel 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: 5390815
    Abstract: A rectangular box is provided with parallel slots in the sidewalls and parallel slots in the endwalls. Elongate pieces of elastomeric material extend across the interior of the box and through the slots. The pieces can be positioned in a plurality of positions by holes in the pieces which fit on projections in the slots.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: February 21, 1995
    Assignee: Mark Bernard Spiegel
    Inventor: Mark B. Spiegel