Systems and methods for evaluating the appearance of a gemstone

Details for Australian Patent Application No. 2002211754 (hide)

Owner Gemological Institute of America, Inc.

Inventors Hemphill, Thomas S.; Johnson, Mary L.; Shigley, James E.; Reinitz, Ilene M.

Agent Fisher Adams Kelly

Pub. Number AU-B-2002211754

PCT Pub. Number WO02/31474

Priority 09687759 12.10.00 US

Filing date 11 October 2001

Wipo publication date 22 April 2002

Acceptance publication date 19 April 2007

International Classifications

G01N 21/87 (2006.01) Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light - Investigating jewels

Event Publications

19 April 2007 Application Accepted

  Published as AU-B-2002211754

16 August 2007 Standard Patent Sealed

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