Patents by Inventor David L. Dull

David L. Dull 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: 5482509
    Abstract: A lottery play slip and lottery ticket jacket for protectively holding one or a plurality of play slips and lottery tickets. The device is formed of three preferably transparent flat panels connected along three edges one to another. The forth or upper margin of each panel is unconnected to facilitate slidable insertion of the play slip between two of the panels sized similar to the play slip and insertion of the smaller lottery ticket between the second and third panels, the third panel being smaller in size and similar to that of the lottery ticket.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: January 9, 1996
    Inventor: David L. Dull