Patents by Inventor Pauline D. Davis

Pauline D. Davis 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).

  • Educational blocks
    Patent number: 4802854
    Abstract: A novel set of large letters of the alphabet and numbers with tracks for their support and combination is provided for manufacture as both an educational and a creative plaything.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: February 7, 1989
    Inventor: Pauline D. Davis