Retractable Peg Patents (Class 473/104)
  • Backyard baseball game
    Patent number: 5803839
    Abstract: An informal baseball game played with a few players on each side, equipment for defining a strike zone and hit zones, and with a set of rules.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: September 8, 1998
    Inventors: Robert Palmer, Kenneth Vayda