Patent
   D509975
Priority
Dec 29 2004
Filed
Dec 29 2004
Issued
Sep 27 2005
Expiry
Sep 27 2019
Assg.orig
Entity
unknown
21
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
10258820, Sep 17 2013 Corecentric LLC Systems and method for providing ergonomic exercise chairs
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10960263, Sep 17 2013 Corecentric LLC Systems and methods for providing ergonomic exercise chairs
7841664, Jun 04 2008 Steelcase Inc Chair with control system
D543717, Dec 01 2006 Office chair
D546086, Dec 01 2006 Office chair
D600931, May 26 2008 Steelcase Inc. Seating unit
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
D654291, May 26 2008 Steelcase Inc Seating unit
D673399, Aug 26 2011 Seatback frame
D677917, Aug 11 2011 DAKANG HOLDING GROUP CO., LTD.; DAKANG HOLDING GROUP CO , LTD Chair
D696055, May 26 2009 STEELCASE, INC Chair back
D696545, May 26 2009 STEELCASE, INC Rear surface of a chair back
D696546, May 26 2009 STEELCASE, INC Chair back
D708884, Jan 10 2014 Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back frame
D708885, Jan 22 2014 Zhongśhan Shi Songlin Furniture Co., Ltd; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back frame
D780499, Jun 18 2015 Zhongshan Shi Songlin Furniture Co., Ltd. Chair back frame
D784748, Oct 02 2015 Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back
D804879, Nov 12 2015 Corecentric LLC Chair
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
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 20 2004PAN, TOUNG-CHUNOASYSCHAIR CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0161510854 pdf
Dec 29 2004Oasyschair Co., Ltd.(assignment on the face of the patent)
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