Gemstone
Description
Claims
The ornamental design for a gemstone, as shown and described.
Referenced Cited
Patent History
Patent number: D725543
Type: Grant
Filed: Jun 10, 2013
Date of Patent: Mar 31, 2015
Assignee: Tokyopearl Co., Ltd. (Tokyo)
Inventor: Tota Koyama (Tokyo)
Primary Examiner: Ralf Seifert
Application Number: 29/457,381
Type: Grant
Filed: Jun 10, 2013
Date of Patent: Mar 31, 2015
Assignee: Tokyopearl Co., Ltd. (Tokyo)
Inventor: Tota Koyama (Tokyo)
Primary Examiner: Ralf Seifert
Application Number: 29/457,381
Classifications
Current U.S. Class:
Faceted (D11/90)