Patents by Inventor Norman H. Johnston

Norman H. Johnston 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).

  • Reverse camber ski
    Patent number: 4343485
    Abstract: An improved ski has a reverse camber bottom surface and an hourglass shaped side camber. The waist of the hourglass side camber configuration and the bindings are positioned slightly back from the usual ski binding placement position.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: August 10, 1982
    Assignee: Ski World, Inc.
    Inventors: Norman H. Johnston, David A. Johnston