Patents by Inventor Walter A. Keith

Walter A. Keith 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: D607600
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: January 5, 2010
    Assignee: American Tack & Hardware Co., Inc.
    Inventor: Walter A. Keith