Hydraulically powered door and systems for operating same in lowtemperature environments

Details for Australian Patent Application No. 2008201155 (hide)

Owner Kennedy Metal Products & Buildings, Inc.

Inventors Kennedy, John M.; Kennedy, William R.

Agent EF WELLINGTON & CO

Pub. Number AU-B-2008201155 (Modified Examination)

Priority 11/735833 16.04.07 US

Filing date 12 March 2008

Wipo publication date 30 October 2008

Acceptance publication date 17 March 2011

International Classifications

E21F 1/12 (2006.01) Ventilation of mines or tunnels

Event Publications

3 April 2008 Complete Application Filed

  Priority application(s): 11/735833 16.04.07 US

30 October 2008 Application Open to Public Inspection

  Published as AU-B-2008201155 (Modified Examination)

17 March 2011 Application Accepted

  Published as AU-B-2008201155 (Modified Examination)

14 July 2011 Standard Patent Sealed

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