Gem tester

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9134263
APP PUB NO 20140292358A1
SERIAL NO

14301045

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A gem tester for testing a gem under test and a kit including a horizontal recharging stand are disclosed. In one embodiment of the gem tester, an elongated body has a line-of-sight contour tapering from a bulbous end to a radially deviating frontal nose having a probe extending therefrom. Internal circuitry measures electrical and thermal conductivity of the gem under test in order to identify the type of gem under test and drive a color control signal in response thereto. A luminescent mounting extends about the contact to provide, in response to the control signal, a color indication of the identified gem type.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SY KESSLER SALES INC10455 OLYMPIC DRIVE DALLAS TX 75220

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kessler, Daniel L Dallas, US 16 124
Kessler, Henry M Dallas, US 17 148

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 15, 2027
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