Patents by Inventor Violet Mason

Violet Mason 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).

  • Spools and bobbins organizer
    Patent number: D322530
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: December 24, 1991
    Inventor: Violet Mason