INVISIBLE INK MARKINGS IN DEFINED AREAS OF A GAME DEVICE RESPONSIVE TO COLOR CHANGING CHEMICAL MARKER

• US 3,826,499 A
• Filed: 10/04/1972
• Issued: 07/30/1974
• Est. Priority Date: 10/04/1972
• Status: Expired due to Term

• Current Assignee: Leon G. Lenkoff
• Original Assignee: Leon G. Lenkoff
• Inventors: Lenkoff, Leon G.
• Primary Examiner(s): Oechsle, Anton O.
• Assistant Examiner(s): Kramer, Arnold W.
• Application Number:
  US05/294,821
• Time in Patent Office: 664 Days
• Field of Search: 273/139,138,13R,13B,13C,13D,13E,13F,13G,13H 35/9G,9A,48R 283/6
• US Class Current: 273/240
• CPC Class Codes: A63F 2003/00078 Naval war
• CPC Class Codes: A63F 3/00094 Ticktacktoe
• CPC Class Codes: A63F 3/00895 Accessories for board games A63F3/00697 takes precedence; game accessories of general use A63F11/00
• CPC Class Codes: A63F 3/062 Bingo games, e.g. Bingo card games
• CPC Class Codes: A63F 3/0685 having a message becoming legible after a chemical reaction or physical action has taken place, e.g. applying pressure, heat treatment, spraying with a substance, breaking microcapsules use of microcapsules for duplicating paper B41M5/165
• CPC Class Codes: A63F 9/00 Games not otherwise provided for aspects of games using an electronically generated display having two or more dimensions showing representations related to the game A63F13/00 ; miscellaneous sporting games A63B67/00
• CPC Class Codes: A63F 9/18 Question-and-answer games

Abstract

A game device including defined areas having differing invisible ink markings whereby the marking of one of said areas by a player with a color changing chemical marking means provides a differing game scoreable response from the marking of the other area.

Claims

1. A simulated-tac-toe game comprising a marking sheet;

a color changing chemical marking means for marking said sheet visibly;

at least one tic-tac-toe grid visibly marked on said sheet to define areas associated therewith in wHich two differing indicia are normally placed in the progress of a conventional tic-tac-toe game;

said defined areas each being printed with an invisible ink marking designating one indicia or the other, said markings including at least one winning linear array of one indicia and/or the other whereby a player may arbitrarily assign to himself one of the two indicia marking designations with the other designation being assigned to an opponent who may be imaginary whereby the player on selectively marking said areas with the color changing chemical marking means develops said invisible ink markings in an attempt to complete a winning linear array of the markings assigned to himself before completion of a winning linear array of the other marking.

2. A simulated naval engagement game comprising marking sheet means;

color changing chemical marking means for marking said sheet means visibly;

a first grid for one player visibly marked on said sheet means to define areas associated therewith;

said grid defined areas each being printed with a respective one of invisible ink markings which invisible ink markings are developed on being marked with said color changing chemical marking means;

said invisible ink markings including groups of invisible markings with the markings within each group being identical and the markings of each group being different than the markings of each other group;

the identical invisible ink markings of each group being aligned in linear array on adjoining defined areas of said grid with each invisible linear array simulating an unseen naval vessel; and

a second grid for a second player marked on said sheet means in a manner similar to said first grid and printed in competitively arranged fashion with similar invisible linear array groups whereby one player can play against the other by each alternatively selectively marking its marking grid with color changing chemical marking means in an attempt to win by first developing all of the invisible groups of markings simulating all of the naval vessels on its grid before the other.

3. A simulated naval engagement game comprising marking sheet means;

color changing chemical marking means for marking said sheet means visibly;

a grid visibly marked on said sheet means to define areas associated therewith;

said grid defined areas each being printed with a respective one of invisible ink markings which invisible ink markings are developed on being marked with said color changing chemical marking means;

said invisible ink markings including groups of invisible markings with the markings within each group being identical and the markings of each group being different than the markings of each other group;

the identical invisible ink markings of each group being aligned in linear array on adjoining defined areas of said grid with each invisible linear array simulating an unseen naval vessel; and

a scoreboard marked on said sheet means defining a number of score marking areas;

the number of score marking areas being less than the number of grid areas and greater than the total number of linear arrayed areas simulating said naval vessels whereby a player alternating between selectively marking an invisibly marked grid area and a different scoremarking area with said color changing chemical marking means attempts to win by developing all of the groups of markings simulating all the naval vessels before marking all the scoremarking areas.

4. A simulated maze game comprising a marking sheet;

a color changing chemical marking means for marking said sheet visibly;

at least one section on said marking sheet including a plurality of visibly marked adjacent areas selectable for marking by said marking means;

a visibly designated entrance at a first position of said section of adjacent areas designating one of said areas and a visibly designated exit at a second position designating another of said areas;

all of said areas each being printed with one of invisible ink markings;

said invisible ink markings comprising singLe directional arrows, double directional arrows and nondirectional indicia with said single directional arrows each being variably positioned and indicating the next adjacent area designated thereby, the double directional arrows variably positioned and indicating the next adjacent areas designated thereby, and the nondirectional indicia failing to indicate any adjacent areas; and

a continuous tortuous pathway made up of said directional arrows extending from said entrance to said exit whereby on marking said areas starting at said entrance with said marking means and following the invisible ink markings developed thereby an attempt is made to complete the continuous tortuous pathway to said exit by marking the fewest possible numbers of said areas with said marking means.

5. A simulated bingo-type game comprising a marking sheet means;

color changing chemical marking means for marking said sheet means invisibly;

a first grid visibly marked on said sheet means to define areas therewith with each defined area being printed with one of a random variation of visible ink markings to identify said defined areas; and

a second grid visibly marked on said sheet means to define areas therewith with all but at least one of said defined areas including in random fashion an invisible ink marking corresponding with one of the distinct visible markings in one of the defined areas of said first grid and the at least one defined area excepted in said second grid including an invisible symbol representing a straw contestant against a player whereby a player on selectively marking said areas on said second grid develops said invisible ink markings to select defined areas in said first grid in accordance with the agreement between the developed markings and the visible ink markings on the defined areas of said first grid in an attempt to select a linear array of defined areas across said first grid before selecting on said second grid said invisible symbol representing said straw contestant.