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Patent
D793142
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Priority
May 31 2016
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Filed
May 31 2016
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Issued
Aug 01 2017
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Expiry
Aug 01 2032
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Assg.orig
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Entity
unknown
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14
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16
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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 |
D841997, |
Jan 29 2016 |
|
Rotary chair |
D874842, |
Aug 31 2017 |
|
Office chair |
D885102, |
Mar 20 2018 |
THYSSENKRUPP STAIRLIFTS B V |
Support structure for a stairlift chair |
D885703, |
Mar 20 2018 |
THYSSENKRUPP STAIRLIFTS B V |
Stairlift chair |
D907947, |
May 13 2020 |
Henglin Home Furnishings Co., Ltd. |
Chair |
D917217, |
Nov 29 2019 |
Zhongshan Shi Songlin Furniture Co., Ltd. |
Chair back frame |
D917218, |
Jan 21 2020 |
Zhongshan Shi Songlin Furniture Co., Ltd. |
Chair back frame |
D917947, |
Sep 29 2020 |
|
Adjustable chair |
D935795, |
Jul 10 2019 |
HOMY CASA LIMITED |
Chair |
D947574, |
Aug 20 2018 |
COOLSIDE LIMITED |
Internal assembly for travel accessory |
D953086, |
May 23 2021 |
Guangzhou Ceyou Furniture Co., Ltd. |
Chair backrest |
D957846, |
Aug 20 2018 |
COOLSIDE LIMITED |
Travel accessory |
ER1693, |
|
|
|
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 |
8408647, |
May 21 2010 |
|
Movable chair backrest |
D501333, |
Apr 14 2003 |
PRO-CORD S P A |
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 |
D645684, |
Jan 18 2011 |
|
Combined seatback frame |
D661506, |
Jan 21 2011 |
|
Chair |
D661916, |
Jan 18 2011 |
|
Office chair |
D673399, |
Aug 26 2011 |
|
Seatback frame |
D698167, |
May 09 2012 |
Zhejiang Anji Daming Furniture Co., Ltd. |
Chair |
D708883, |
Jan 10 2014 |
Zhongshan Shi Songlin Furniture Co., Ltd; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD |
Chair back frame |
D708884, |
Jan 10 2014 |
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 |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a