Patent
   D510826
Priority
Dec 29 2004
Filed
Dec 29 2004
Issued
Oct 25 2005
Expiry
Oct 25 2019
Assg.orig
Entity
unknown
6
4
n/a
The ornamental design for a chair back, as shown and described.

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

FIG. 2 is a front side elevational view thereof;

FIG. 3 is a rear side 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.

Pan, Toung-Chun

Patent Priority Assignee Title
D543717, Dec 01 2006 Office chair
D641572, Feb 01 2010 FUH Shyan Co., Ltd. Chair back frame
D641575, Sep 03 2010 FUH Shyan Co., Ltd.; Chueng Shine Co., Ltd. Three-piece chair backrest frame
D644466, May 18 2010 Chair back
D673399, Aug 26 2011 Seatback frame
D784748, Oct 02 2015 Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back
Patent Priority Assignee Title
4864668, Mar 21 1989 Portable back support
D456625, Oct 18 2000 KOKUYO CO , LTD Chair
D491394, May 14 2003 Hsiu-Hsueh Wu Combined chair seat/backrest
D501333, Apr 14 2003 PRO-CORD S P A Chair
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 20 2004PAN, TOUNG-CHUNOASYSCHAIR CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0161510848 pdf
Dec 29 2004Oasyschair Co., Ltd.(assignment on the face of the patent)
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