Backrest

The ornamental design for a backrest, as shown and described.

FIG. 1 is a perspective view of a backrest showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
D552857,	Mar 08 2007		Chair
D553378,	Mar 08 2007		Chair
D556481,	May 09 2007	Allseating Corporation	Chair back
D575563,	Apr 11 2007	Global Total Office	Chair back
D594681,	Oct 18 2004	DAUPHIN ENTWICKLUNGS- U BETEILIGUNGS-GMBH	Chair back
D600461,	Nov 24 2008	Z-LINE DESIGNS, INC	Chair
D646915,	Dec 23 2010	Kimball International, Inc.	Chair backrest
D773874,	Apr 08 2015		Chair backrest
D818294,	Mar 07 2016	Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD	Chair back frame
D832017,	Jun 13 2016	MILLERKNOLL, INC	Chair component
D841340,	Jun 13 2016	MILLERKNOLL, INC	Suspension textile sheet

Patent	Priority	Assignee	Title
6722741,	Jun 15 1992	Herman Miller, Inc.	Seating structure having a backrest with a bowed section
D453079,	Apr 20 2001	E CHAIR COMPANY, THE	Arm chair
D456626,	Jul 19 2001		Chair
D463693,	Jun 26 2001		Chair backrest
D481879,	Nov 15 2002		Chair
D486656,	Mar 13 2003		Chair
D486657,	Mar 13 2003		Chair
D489191,	Sep 27 2002		Arm chair
D490994,	Oct 15 2002	HERMAN MILLER, INC	Task chair
D493627,	Sep 27 2002		Arm chair
D494768,	Dec 12 2003		Chair
D495509,	Dec 12 2002	NIGHTINGALE CORP	Chair
D512843,	Jun 10 2003	Nightingale Corp.	Chair
D514831,	Oct 02 2003	Zhejiang Himax Furniture Industry Corp., Ltd.	Chair

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