Electric heating – Metal heating – By arc
Reexamination Certificate
2006-03-14
2010-02-02
Evans, Geoffrey S (Department: 3742)
Electric heating
Metal heating
By arc
Reexamination Certificate
active
07655882
ABSTRACT:
An apparatus and method for producing an authentication certification for a gemstone, having a processor, a database coupled to the processor, in which are stored data defining laser micro-inscriptions and physical characteristics of a plurality of gemstones, a graphic user interface (GUI) for interacting with and controlling the processor, and a computer output device, presenting in human readable form, information from the database describing for a respective gemstone the laser micro-inscription and physical characteristic information. The output is suitable for authentication of a presumptive gemstone. A corresponding method generates data for the database from the gemstone, and/or authenticates a laser-microinscribed gemstone based on previously stored data.
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Christensen, C. Paul; “
Anner Oded
Gurvich Leonid
Kaplan George R.
Shachrai Avigdor
Eckert Seamans Cherin & Mellott , LLC
Evans Geoffrey S
Lazare Kaplan International Inc.
Milde, Jr. Karl F.
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