Chair back

The ornamental design for a chair back, as shown and described.

FIG. 1 is a front perspective view of a chair back;

FIG. 2 is a rear perspective view of a chair back;

FIG. 3 is a right side elevation view of a chair back;

FIG. 4 is a front elevation view of a chair back;

FIG. 5 is a left side elevation view of a chair back;

FIG. 6 is a rear elevation view of a chair back;

FIG. 7 is a top plan view of a chair back;

FIG. 8 is a bottom plan view of a chair back;

FIG. 9 is a front perspective view of a second embodiment of a chair back;

FIG. 10 is a rear perspective view of a second embodiment of a chair back;

FIG. 11 is a right side elevation view of a second embodiment of a chair back;

FIG. 12 is a front elevation view of a second embodiment of a chair back;

FIG. 13 is a left side elevation view of a second embodiment of a chair back;

FIG. 14 is a rear elevation view of a second embodiment of a chair back;

FIG. 15 is a top plan view of a second embodiment of a chair back; and,

FIG. 16 is a bottom plan view of a second embodiment of a chair back.

In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design.

Patent	Priority	Assignee	Title
D647337,	Apr 29 2010	Gasser Chair Company, Inc.	Chair back
D647739,	Apr 29 2010	Gasser Chair Company, Inc.; GASSER CHAIR COMPANY, INC	Chair back

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Apr 03 2007	KACZMAREK, PIOTR	Global Total Office	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	019242	0206	pdf
Apr 11 2007		Global Total Office	(assignment on the face of the patent)

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