Patents by Inventor Frank Alessio

Frank Alessio 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).

  • Teaching clock
    Patent number: D269790
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: July 19, 1983
    Inventor: Frank Alessio
  • Teaching clock
    Patent number: D273873
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: May 15, 1984
    Inventor: Frank Alessio