Patents by Inventor MacQuarrie Walker

MacQuarrie Walker 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: 4941663
    Abstract: A service catching device for a tennis court comprising a pair of frame sections, each having a pair of upstanding edges and a pair of horizontal edges, the frame sections being joined along an upstanding edge perpendicular to each other to form a "L" shape as seen in plan view. One of the frame sections has horizontal edges longer than the other of the frame sections. Netting is secured between the upstanding and horizontal of each of the frame sections to prevent a tennis ball from passing through the frame sections. The frame section having the longer horizontal edges is placed along the rear line defining the tennis court service area while the frame section having the shorter horizontal edges is placed along the outside line defining the tennis court service area. The frame sections and associated netting are adapted to retain tennis balls served into the service area from the opposite side of the tennis court.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: July 17, 1990
    Inventor: MacQuarrie Walker