Patents by Inventor Jacqulyn G. Griffin

Jacqulyn G. Griffin 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).

  • Batting baseball tee
    Patent number: 4176838
    Abstract: A batting baseball tee comprised of a self-righting, semi-spherical weighted bottom portion with an axially upstanding post removably fixed thereto, terminating at its upper end with an inverted conical helical spring attached thereto for the reception of a ball forming a batting target.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: December 4, 1979
    Inventor: Jacqulyn G. Griffin