Patents by Inventor Earl W. Karsten

Earl W. Karsten 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).

  • Foldable sign
    Patent number: 5095642
    Abstract: Street signs are signs placed in store fronts or store aisles, at service stations, or the like, to display messages to the public. They generally include a sign panel supported by a base assembly and legs connected to the base assembly which support the sign. The present invention includes such a street sign having legs pivotally attached to the base assembly so that when the sign is to be stored, it may be conveniently folded so as to be made relatively narrow for convenience of carrying and storage.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: March 17, 1992
    Assignee: Stout Industries, Inc.
    Inventors: Gary P. George, Earl W. Karsten