Patents by Inventor Lawrence J. Gros

Lawrence J. Gros 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).

  • Video game security guard apparatus
    Patent number: 4562708
    Abstract: A security locking device for coin-operated video game machines comprising means for preventing access to the coin box of the machine and means for preventing access through the service panel of the machine.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: January 7, 1986
    Inventor: Lawrence J. Gros