Patents by Inventor Walter L. Hempfling

Walter L. Hempfling 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).

  • Sign structure
    Patent number: 4173086
    Abstract: A sign structure which includes a pole member, means for mounting the pole member in upright position, and a sign panel member mounted on the upper portion of the pole member. The sign panel member includes a main panel portion, a bend portion, and a minor panel portion separated from the main panel portion by the bend portion. The upper portion of the pole member is cross shaped. An opening in the bend portion receives an upper end portion of the pole member with the inner side of the bend portion supported by side arms thereof.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: November 6, 1979
    Inventor: Walter L. Hempfling