Yieldable prop

Details for Australian Patent Application No. 2004220737 (hide)

Owner Jennmar Corporation

Inventors Stankus, John C.; Oldsen, John G.

Agent Griffith Hack

Pub. Number AU-B-2004220737

Priority 10/687960 17.10.03 US

Parent 2003200611

Filing date 15 October 2004

Wipo publication date 11 November 2004

Acceptance publication date 18 October 2007

International Classifications

E21D 15/36 (2006.01) Working-face supports

E21D 15/40 (2006.01) Working-face supports

Event Publications

28 October 2004 Complete Application Filed

  Priority application(s): 10/687960 17.10.03 US

11 November 2004 Application Open to Public Inspection

  Published as AU-B-2004220737

9 December 2004 Amendment Made

  The nature of the amendment is: Delete the co-inventor Brandon, Demry G.

18 October 2007 Application Accepted

  Published as AU-B-2004220737

14 February 2008 Standard Patent Sealed

28 October 2010 Assignment Registered

  Jennmar Corporation The patent has been assigned to FCI Holdings Delaware, Inc.

15 September 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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