Patents by Inventor Robert Z. Fox

Robert Z. Fox 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: 4188031
    Abstract: A multisport practice device for defining a target for and arresting the flight of a ball or other projectile includes a base supporting a pair of laterally spaced-apart upright posts carrying a net closing the space therebetween. Adjustable crossbar members carry eyelet screws for removably hanging the crossbars from vertically spaced-apart hook screws on the upright posts to define a variable-height target area.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: February 12, 1980
    Inventor: Robert Z. Fox