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