Patents by Inventor Louis A. Visco

Louis A. Visco 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: 5351840
    Abstract: A combined chalk and chalkboard eraser dispenser includes a vertical planar rear wall, a vertical planar front wall spaced forward from the rear wall by approximately the height of a standard blackboard eraser, and a horizontal planar bottom ledge projecting forward from the lower edge of the rear wall, an eraser dispenser opening being defined between a lower edge of the front wall and a forward edge of the bottom ledge. Chalk receptacles are substantially in the form of rectangular boxes having a open horizontal forward face. The depth of the chalk dispenser is preferably slightly less than the length of a standard piece of chalk.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: October 4, 1994
    Assignee: University of Pennsylvania
    Inventors: Louis A. Visco, Arthur Gravina