Patents by Inventor William Stafford McElwain

William Stafford McElwain 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).

  • Tent stake
    Patent number: D941950
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: January 25, 2022
    Assignee: Big Agnes, Inc.
    Inventor: William Stafford McElwain