Patents by Inventor Stella R. Spence

Stella R. Spence 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).

  • Vending machine
    Patent number: D417892
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: December 21, 1999
    Inventor: Stella R. Spence