Patents by Inventor Hal W. Cooper

Hal W. Cooper 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).

  • Racket club
    Patent number: D307308
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: April 17, 1990
    Inventor: Hal W. Cooper
  • Upright hoop unit for a lawn golf game
    Patent number: D310698
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: September 18, 1990
    Inventor: Hal W. Cooper