Forming a mark on a gemstone or industrial diamond

Details for Australian Patent Application No. 2002230007 (hide)

Owner Gersan Establishment

Inventors Guy, Keith Barry; Smith, James Gordon Charters

Agent Shelston IP

Pub. Number AU-B-2002230007

PCT Pub. Number WO2002/066262

Priority 0103881.9 16.02.01 GB

Filing date 18 February 2002

Wipo publication date 4 September 2002

Acceptance publication date 15 December 2005

International Classifications

B44C 1/00 (2006.01) Processes, not specifically provided for elsewhere, for producing decorative surface effects

C04B 41/00 (2006.01) After-treatment of mortars, concrete, artificial stone or ceramics

B44C 1/22 (2006.01) Processes, not specifically provided for elsewhere, for producing decorative surface effects - Removing surface-material, e.g. by engraving, by etching

B28D 5/00 (2006.01) Fine working of gems, jewels, crystals, e.g. of semiconductor material

Event Publications

27 February 2003 Application Open to Public Inspection

  Published as AU-B-2002230007

15 December 2005 Application Accepted

  Published as AU-B-2002230007

16 February 2006 Application for Amendment

  The nature of the amendment is as shown in the statement(s) filed 27 Jan 2006. Address for service in Australia - Shelston IP Level 21 60 Margaret Street Sydney NSW 2000 2003

13 April 2006 Standard Patent Sealed

6 July 2006 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 27 Jan 2006

23 December 2010 Assignment Registered

  Gersan Establishment The patent has been assigned to De Beers Centenary AG

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