Patents by Inventor Larry N. Volk

Larry N. Volk 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).

  • System for vending program cartridges which have circuitry for inhibiting program usage after preset time interval expires
    Patent number: 4593376
    Abstract: A vending machine stores a plurality of video game programs which may be selected for purchase. The game program is transferred to a programmable cartridge which the user inserts into the machine. The programmable cartridge is then removed for use on a separate video game unit. The programmable cartridge includes a use interval circuit which is preset by the vending machine to expire after a time interval. When expired, the transferred program is rendered inoperable.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: June 3, 1986
    Inventor: Larry N. Volk