Patents by Inventor Everett E. Worthington

Everett E. Worthington 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: 3948512
    Abstract: A recreational facility is described incorporating a plurality of tennis courts positioned in an array with the center lines or longitudinal axes of the courts emanating from a common point. The center lines of adjacent courts are positioned at an angle such that the boundary lines of the second halves of the courts overlap. An automatic ball-throwing machine is positioned in the second half of each of the courts to propel tennis balls to the first half; the second half of each of the courts is graded and provided with a trough to urge the balls to return to the machine. The recreational facility is also provided with a service area which is surround by the tennis courts; the second half of each tennis court is abutting the service area to provide the boundary of the service area.
    Type: Grant
    Filed: December 4, 1974
    Date of Patent: April 6, 1976
    Assignee: Tennis in the Round, Inc.
    Inventor: Everett E. Worthington