Patents by Inventor Charles E. Grams

Charles E. Grams 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: 4871335
    Abstract: A water-ski locator device is comprised of a buoyant body fixed in position on the top surface of the water-ski's toe piece by a number of straps. So positioned, the buoyant body does not create water drag while the ski is in use. The device is also particularly adapted to restore the body uppermost over the ski and to visibly project above the water's surface in the event the ski becomes detached, or is purposely left by the skier, and comes to rest in an upside down orientation, i.e., if the ski initially comes to rest, as a water-ski is otherwise often inclined to do, with its bottom surface floating on the water and its shoe piece facing downward.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: October 3, 1989
    Inventor: Charles E. Grams