Patents by Inventor Peter McCormack Smith

Peter McCormack Smith 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).

  • Drawing apparatus
    Patent number: 5775914
    Abstract: A drawing apparatus including a frame portion. A liquid membrane is positionable within the frame portion. A planar portion is positionable within the frame portion below the liquid membrane. A drawing implement is used to press down on the liquid membrane to move a black pliable liquid around to expose images on the planar portion.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: July 7, 1998
    Inventor: Peter McCormack Smith