Patents by Inventor Eugene J. De Ruyter

Eugene J. De Ruyter 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: 5390921
    Abstract: A tubular golf shaft extending device comprising a tubular member which is fabricated of steel or graphite and which has an upper open end and a lower open end. The exterior diameter of the member is essentially the same as the exterior diameter of the upper end of a golf club shaft. The length of the member is about 3 1/2 inches whereby the majority of the member may be positioned as an extension to extend beyond the upper end of the shaft. Also included is an adhesive which is located between the upper end of the shaft and the lower end of the member to form an adhesive bond therebetween. A grip is positioned over the member and the upper extent of the shaft.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: February 21, 1995
    Inventor: Eugene J. De Ruyter