Patents by Inventor Dwight Holbrook

Dwight Holbrook 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: 3942800
    Abstract: An archeological game utilizing common archeological techniques for locating an ancient buried civilization, termed the Great Civilization. The game interrelates two types of indicia bearing cards, termed fragment cards and clue cards, for determining the language of the ancient civilization from a plurality of possible languages and then deciphering the archeological fragments encrypted in that language to locate a predetermined number of fragments genuinely from that civilization, such as a predetermined number of mateable fragments which define a message, in order to be declared the finder of the ancient buried civilization. A fragment card may contain genuine encrypted language symbols as well as ingenuine or fake symbols not genuinely associated with the ancient civilization, such as forgeries or imports of another region than the known regional location of the ancient civilization.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: March 9, 1976
    Inventor: Dwight Holbrook