Patents by Inventor Myrtle C. Swart

Myrtle C. Swart 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).

  • Patent number: D252920
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: September 18, 1979
    Inventor: Myrtle C. Swart