USD217484S - Optical illusion puzzle - Google Patents

Description

United States Patent Ofifice jfjjg'fi'f,

OPTICAL ILLUSION PUZZLE Alan A. Hicks, Weston, Conn., and Ernest J. Swimmer, New York, N.Y., assignors to Kohner Bros., Inc., East Paterson, N.J., a corporation of New York Filed Jan. 24, 1969,'Ser. No. 15,482

Term of patent 7 years Int. Cl. D2101 U.S. Cl. D34-15 FIG. 1 is a top view of an optical illusion puzzle show- We claim: ing our new design; The ornamental design for an optical illusion puzzle,

FIG. 2 is a front elevational view thereof; substantially as shown and described.

FIG. 3 is a bottom view thereof;

FIG. 4 is a side elevational view taken from the right References Cited of i 1 d t l t k b UNITED STATES PATENTS 1s an en arge cross-sec lona v1ew 21 en su 1,462,849 7/1923 Chr1stenson et a1. 272-8 stantlally along the km 5 5 of FIG. 1. 1,590,463 6/1926 Wood 272 8 The opposite side of FIG. 4 is substantially the same except the guide indention at the upper edge is of a smaller length than that illustrated in FIG. 4.

The rear of the opposite side of FIG. 2 is substantially MELVIN FEIFER Primary Examiner the same as FIG. 4 except that no guide indentation is present on the upper edge.

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