Modified apparatus and method for assessment, evaluation and grading of gemstones

Details for Australian Patent Application No. 2009301638 (hide)

Owner Opal Producers Australia Limited

Inventors Hornabrook, Graham Alfred; Marchant, Stuart Norman; Lummis, Rodney Herbert; Primmer, Kathryn Elizabeth; Hornabrook, Angus Nelson; Sutton, Peter Bruce; Imrie, Robert George; Bischof, Leanne; Lagerstrom, Ryan; Hilsenstein, Volker

Agent Peter Maxwell & Associates

Pub. Number AU-A-2009301638

PCT Pub. Number WO2010/040180

Priority 2008905277 09.10.08 AU

Filing date 9 October 2009

Wipo publication date 15 April 2010

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

28 April 2011 PCT application entered the National Phase

  PCT publication WO2010/040180 Priority application(s): WO2010/040180

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