Patent
   D453120
Priority
Oct 17 2000
Filed
Oct 17 2000
Issued
Jan 29 2002
Expiry
Jan 29 2016
Assg.orig
Entity
unknown
10
22
n/a
The ornamental design of a gemstone, as shown and described.

FIG. 1 is a side view of a first embodiment of a gemstone according to the present invention;

FIG. 2 is a top view of the gemstone of FIG. 1;

FIG. 3 is a bottom view of the gemstone of FIG. 1;

FIG. 4 is a side view of a second embodiment of the gemstone according to the present invention;

FIG. 5 is a top view of the gemstone of FIG. 4; and,

FIG. 6 is a bottom view of the gemstone of FIG. 4.

The broken lines are provide for illustrative purposes only and form no part of the claimed design.

Cheng, Nai Yan

Patent Priority Assignee Title
6604382, Nov 07 2000 OOSHIMA, TOSHIAKI New-cut diamond shape
6698239, Feb 23 2001 Samuel Aaron, Inc. Brilliant cut diamond
D475650, Feb 22 2002 Samuel Aaron, Inc.; SAMUEL AARON, INC Brilliant-cut diamond
D487031, Dec 02 2002 GASSAN DIAMONDS B V ; ANTWERP UNITED DIAMONDS N V Diamond or gemstone
D534831, Jul 14 2003 Stone cut
D555032, Aug 27 2003 David W., So Precious stone cut
D675546, Mar 22 2012 Rosy Blue, Inc.; ROSY BLUE, INC Multiple facet gemstone
D699145, Jun 28 2012 GEMEX NT, LLC Surface ornamentation for a gemstone
D699618, Oct 25 2010 Gemological Institute of America; California Institute of Technology Surface ornamentation for a diamond
D953421, Jul 01 2019 Binder
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 30 2000CHENG, NAI YANCONTINENTAL JEWELRY USA INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0112510793 pdf
Oct 17 2000Continental Jewelry (USA) Inc.(assignment on the face of the patent)
Dec 12 2019CONTINENTAL JEWELRY USA INC CONTINENTAL JEWELLERY MFG LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0514420635 pdf
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