Acoustical ceiling panel

The ornamental design for an acoustical ceiling panel, substantially as shown.

FIG. 1 is a reduced perspective view of an acoustical ceiling panel showing my new design;

FIG. 2 is a plan view of a portion of the acoustical ceiling panel of FIG. 1 at substantially actual size; and

FIG. 3 is a perspective view of a portion of the acoustical ceiling panel of FIG. 1 at the substantially actual size.

Patent	Priority	Assignee	Title
D474847,	Jun 14 2001	USG INTERIORS, LLC	Embossed acoustical ceiling panel
D476093,	Jun 14 2001	USG INTERIORS, LLC	Embossed acoustical ceiling panel
D631670,	Dec 31 2008	Knauf Insulation GmbH	Insulation material
D635783,	Dec 31 2008	Knauf Insulation GmbH	Combined insulation material and wall studs
D637313,	Mar 13 2009	Glasfabrik Lamberts GmbH & Co. KG	Portion of a glass body of a building glass
D684704,	Mar 13 2009	Glasfabrik Lamberts GmbH & Co. KG	Glass body of a building glass

Patent	Priority	Assignee	Title
222855,

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Sep 24 1979	WEITZMAN, MARK R	Owens-Corning Fiberglas Corporation	ASSIGNMENT OF ASSIGNORS INTEREST	003906	0067	pdf
Sep 27 1979		Owens-Corning Fiberglas Corporation	(assignment on the face of the patent)
Nov 03 1986	Owens-Corning Fiberglas Corporation	Wilmington Trust Company	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	004652	0351	pdf
Nov 03 1986	Owens-Corning Fiberglas Corporation	WADE, WILLIAM, J	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	004652	0351	pdf
Dec 31 1986	Owen-Corning Fiberglas Corporation	ARMSTRONG WORLD INDUSTRIES, INC , P O BOX 3001, LANCASTER, PA 17604 A PA CORP	ASSIGNMENT OF ASSIGNORS INTEREST	004719	0372	pdf
Feb 09 1987	Wilmington Trust Company	ARMSTRONG WORLD INDUSTRIES, INC , A CORP	RELEASED BY SECURED PARTY SEE DOCUMENT FOR DETAILS	004677	0661	pdf
Jul 30 1987	WILMINGTON TRUST COMPANY, A DE BANKING CORPORATION	OWENS-CORNING FIBERGLAS CORPORATION, A CORP OF DE	TERMINATION OF SECURITY AGREEMENT RECORDED NOV 13, 1986 REEL 4652 FRAMES 351-420	004903	0501	pdf
Jul 30 1987	WADE, WILLIAM J TRUSTEES	OWENS-CORNING FIBERGLAS CORPORATION, A CORP OF DE	TERMINATION OF SECURITY AGREEMENT RECORDED NOV 13, 1986 REEL 4652 FRAMES 351-420	004903	0501	pdf

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