Acoustical panel comprising interlocking matrix of set gypsum and method for making same

Details for Australian Patent Application No. 2004221854 (hide)

Owner United States Gypsum Company

Inventors Petersen, Bruce L.; Englert, Mark H.; Fults, Therese A.; Stevens, Richard B.; Porter, Michael J.; Sucech, Steven W.; Dombeck, Russell A.

Agent Griffith Hack

Pub. Number AU-B-2004221854

PCT Pub. Number WO2004/083146

Priority 60/455,782 19.03.03 US

Filing date 19 March 2004

Wipo publication date 30 September 2004

Acceptance publication date 11 June 2009

International Classifications

C04B 28/14 (2006.01) Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements

B28B 5/02 (2006.01) Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyers irrespective of the manner of shaping

B28B 19/00 (2006.01) Machines or methods for applying the material to surfaces to form a permanent layer thereon

E04C 2/04 (2006.01) Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels - of concrete or other stone-like material

E04B 1/74 (2006.01) Constructions in general - Heat, sound or noise insulation, absorption, or reflection

E04B 1/76 (2006.01) Constructions in general - specifically with respect to heat only

E04B 1/84 (2006.01) Constructions in general - Sound-absorbing elements

Event Publications

1 September 2005 PCT application entered the National Phase

  PCT publication WO2004/083146 Priority application(s): WO2004/083146

11 June 2009 Application Accepted

  Published as AU-B-2004221854

8 October 2009 Standard Patent Sealed

18 October 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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