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Patent
D708884
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Priority
Jan 10 2014
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Filed
Jan 10 2014
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Issued
Jul 15 2014
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Expiry
Jul 15 2028
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Assg.orig
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Entity
unknown
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11
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15
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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.
Hsuan-Chin, Tsai
Patent |
Priority |
Assignee |
Title |
D772592, |
Nov 01 2015 |
|
Chair backrest |
D777497, |
Sep 04 2015 |
Zhongshan 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 |
D785964, |
May 30 2014 |
STARWAY INTERNATIONAL HOME-LIVING CO., LTD. |
Chair |
D793142, |
May 31 2016 |
Zhongshan Shi Songlin Furniture Co., Ltd. |
Chair back frame |
D841997, |
Jan 29 2016 |
|
Rotary chair |
D874842, |
Aug 31 2017 |
|
Office chair |
D907947, |
May 13 2020 |
Henglin Home Furnishings Co., Ltd. |
Chair |
D917947, |
Sep 29 2020 |
|
Adjustable chair |
D953086, |
May 23 2021 |
Guangzhou Ceyou Furniture Co., Ltd. |
Chair backrest |
ER3315, |
|
|
|
Patent |
Priority |
Assignee |
Title |
6843530, |
Dec 23 2003 |
|
Multi-stage backrest assembly |
6938956, |
Sep 06 2002 |
Pro-Cord Spa |
Chair backrest |
6945601, |
Dec 23 2003 |
|
Multi-stage backrest assembly |
8251448, |
Mar 13 2007 |
SLACKER, INC |
Dynamic chair back lumbar support system |
8579376, |
Feb 01 2011 |
|
Device for adjusting the height of the backrest of an office chair |
20050189810, |
|
|
|
20090302663, |
|
|
|
20120139321, |
|
|
|
CA2437074, |
|
|
|
D509975, |
Dec 29 2004 |
Oasyschair Co., Ltd. |
Chair back |
D641572, |
Feb 01 2010 |
FUH Shyan Co., Ltd. |
Chair back frame |
D644466, |
May 18 2010 |
|
Chair back |
D661916, |
Jan 18 2011 |
|
Office chair |
D673399, |
Aug 26 2011 |
|
Seatback frame |
D698167, |
May 09 2012 |
Zhejiang Anji Daming Furniture Co., Ltd. |
Chair |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a