Patent
   D774346
Priority
Mar 20 2015
Filed
Mar 20 2015
Issued
Dec 20 2016
Expiry
Dec 20 2030
Assg.orig
Entity
unknown
3
9
n/a
The ornamental design for a chair back frame, as shown and described.

FIG. 1 is a perspective view of a chair back frame, 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 view thereof;

FIG. 5 is a right side view thereof;

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

FIG. 7 is a bottom plan view thereof.

Tsai, Hsuan-Chin

Patent Priority Assignee Title
D793140, Dec 02 2015 Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back frame
D818294, Mar 07 2016 Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back frame
D859047, Jan 05 2018 DONGGUAN KENTEC OFFICE SEATING CO., LTD. Chair back
Patent Priority Assignee Title
D540578, Sep 09 2005 Backrest
D558994, Mar 24 2006 HNI Corporation Chair
D585205, Mar 27 2008 Hurng Taih Plastic Master Batch Co., Ltd. Frame of the office chair
D596884, Dec 23 2008 Hurng Taih Plastic Master Batch Co., Ltd. Chair back frame
D641573, May 10 2010 FUH Shyan Co., Ltd.; FUH SHYAN CO , LTD Chair back frame
D660621, Nov 04 2011 Chair backrest
D669286, Feb 01 2012 Oasyschair Co., Ltd. Backrest holder for a chair
D687660, Jun 05 2012 Zhongshan Shi Songlin Furniture Co., Ltd; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back frame
D708882, Aug 07 2013 Zhongshan Shi Songlin Furniture Co., Ltd Chair back frame
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 20 2015Zhongshan Shi Songlin Furniture Co., Ltd.(assignment on the face of the patent)
Mar 20 2015TSAI, HSUAN-CHINZHONGSHAN SHI SONGLIN FURNITURE CO , LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0352120657 pdf
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