Patents by Inventor Irvin C. Gettelfinger

Irvin C. Gettelfinger 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: 4790538
    Abstract: A golf putting practice range apparatus includes a shooting area, a putting surface and a golf ball target area having a target hole at the down-range end of the putting surface. The golfer stands on the shooting area and hits a golf ball over the putting surface in an attempt to sink the golf ball into the target hole. The target hole is adapted to be selectively moved to present different target locations. Further, the putting surface is adapted to provide for selectively changing its contour. The shooting area is adapted to change its inclination with respect to the horizontal and the putting surface. The golf ball target area is also adapted to change its inclination with respect to the horizontal and the putting surface. Thus, the number of combinations and permutations of the inclination of the shootting area, contour of the putting surface, inclination of the target area, and position of the target hole provides for virtually an infinite number of golf putting conditions which can be practices.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: December 13, 1988
    Inventor: Irvin C. Gettelfinger