Patent
   D257617
Priority
Nov 20 1978
Filed
Nov 20 1978
Issued
Dec 09 1980
Expiry
Dec 09 1994
Assg.orig
Entity
unknown
4
4
n/a
The ornamental design for a gem holder for color evaluating, substantially as shown and described.

FIG. 1 is a top and left front perspective view of a gem holder for color evaluating showing my new design;

FIG. 2 is a bottom and right rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof; and

FIG. 8 is a cross-sectional view as taken from line 8--8 of FIG. 3.

Wolkenfeld, Michael Z.

Patent Priority Assignee Title
6473164, Feb 16 2000 GEMOLOGICAL INSTITUTE OF AMERICA, INC Systems, apparatuses and methods for diamond color measurement and analysis
7834987, Oct 12 2000 Gemological Institute of America, Inc. Systems and methods for evaluating the appearance of a gemstone
D915771, Sep 12 2019 SHENZHEN ZHENGTU AUTO ACCESSORIES CO., LTD. Copilot handle storage box
RE44963, Jan 10 1997 Diamond Technologies, Inc. System and method for computerized evaluation of gemstones
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