Patents Assigned to Lazare Kaplan & Sons, Inc. - Justia Patents Search

Patents Assigned to Lazare Kaplan & Sons, Inc.

Method and apparatus for placing identifying indicia on the surface of precious stones including diamonds

Patent number: 4392476

Abstract: A practice for applying indicia to the surface of a precious stone wherein a source of laser energy is directed at the stone surface and controlled to inscribe the surface with the desired indicia.

Type: Grant

Filed: December 23, 1980

Date of Patent: July 12, 1983

Assignee: Lazare Kaplan & Sons, Inc.

Inventors: Herbert D. Gresser, George Kaplan, Joseph Nussenbaum