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Patent
D641572
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Priority
Feb 01 2010
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Filed
Feb 01 2010
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Issued
Jul 19 2011
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Expiry
Jul 19 2025
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Assg.orig
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Entity
unknown
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31
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18
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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 |
D661506, |
Jan 21 2011 |
|
Chair |
D661523, |
Dec 07 2010 |
|
Chair headrest |
D661916, |
Jan 18 2011 |
|
Office chair |
D686013, |
Dec 23 2011 |
CHIA CHI YA ENTERPRISE CO., LTD.; CHIA CHI YA ENTERPRISE CO , LTD |
Chair back frame |
D698167, |
May 09 2012 |
Zhejiang Anji Daming Furniture Co., Ltd. |
Chair |
D708878, |
Oct 03 2013 |
Harmony Lifestyle, LLC |
Ergonomic chair frame with elastic bands |
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 |
D708885, |
Jan 22 2014 |
Zhongśhan Shi Songlin Furniture Co., Ltd; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD |
Chair back frame |
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 |
D878839, |
Oct 13 2017 |
HANGZHOU ZHANYING TECHNOLOGY CO , LTD |
Chair back |
D907947, |
May 13 2020 |
Henglin Home Furnishings Co., Ltd. |
Chair |
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 |
D970276, |
Jul 07 2022 |
|
Office chair |
D979967, |
Apr 29 2021 |
COMFORT OFFICE FURNITURE CO., LTD GUANGDONG |
Chair |
D979968, |
Apr 29 2021 |
COMFORT OFFICE FURNITURE CO., LTD GUANGDONG |
Chair |
D982338, |
Mar 15 2021 |
CHONGQING GAOTIAN FURNITURE CO , LTD |
Chair |
D985954, |
Jul 14 2021 |
|
Chair |
ER1693, |
|
|
|
ER3390, |
|
|
|
ER5216, |
|
|
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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 |
7303232, |
Dec 07 2006 |
|
Backrest adjusting device for office chairs |
D501333, |
Apr 14 2003 |
PRO-CORD S P A |
Chair |
D507910, |
Jun 09 2004 |
BOCK 1 GmbH & Co. KG |
Headrest |
D509975, |
Dec 29 2004 |
Oasyschair Co., Ltd. |
Chair back |
D510671, |
Nov 25 2003 |
|
Backrest frame of a chair |
D510826, |
Dec 29 2004 |
Oasyschair Co., Ltd. |
Chair back |
D543717, |
Dec 01 2006 |
|
Office chair |
D546086, |
Dec 01 2006 |
|
Office chair |
D557024, |
Apr 23 2007 |
|
Office chair |
D558492, |
Jul 27 2006 |
|
Chair |
D568624, |
Oct 03 2007 |
Hurng Taih Plastic Master Batch Co., Ltd. |
Office chair |
D576416, |
Jan 02 2008 |
|
Chair |
D585205, |
Mar 27 2008 |
Hurng Taih Plastic Master Batch Co., Ltd. |
Frame of the office chair |
D591540, |
Nov 04 2008 |
Chueng Shine Co., Ltd. |
Chair frame |
D610822, |
Jan 21 2009 |
|
Office chair |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a