Patents by Inventor Mary Frances Johnson

Mary Frances Johnson 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).

  • Slipper
    Patent number: D455541
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: April 16, 2002
    Inventor: Mary Frances Johnson