Patents by Inventor Donald O. Ashurst

Donald O. Ashurst 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).

  • Method and apparatus for improving bowling ball control
    Patent number: 5172910
    Abstract: A method and apparatus for providing finger and thumb protection and enhanced control by the fingers and thumb of a bowler utilizing a bowling ball which has finger and thumb holes drilled in it in which the fingers and thumb of the bowler are protected by detachable attached spacing and protecting overlays.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: December 22, 1992
    Inventor: Donald O. Ashurst