Patents by Inventor Susan E. Steffensen

Susan E. Steffensen 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).

  • Picture bingo game
    Patent number: D356834
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: March 28, 1995
    Inventor: Susan E. Steffensen