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Patent
D650617
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Priority
Mar 19 2010
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Filed
Mar 19 2010
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Issued
Dec 20 2011
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Expiry
Dec 20 2025
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Assg.orig
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Entity
unknown
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60
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9
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n/a
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The ornamental design for main frame of chairs, as shown and described.
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FIG. 1 is the front elevational view of main frame of chairs;
FIG. 2 is the rear elevational view thereof;
FIG. 3 is the right side elevational view thereof;
FIG. 4 is the left side elevational view thereof;
FIG. 5 is the top plan view thereof;
FIG. 6 is the bottom plan view thereof; and,
FIG. 7 is the main view thereof.
Chen, Yucheng
| Patent |
Priority |
Assignee |
Title |
| D661137, |
Nov 16 2011 |
|
Chair backrest |
| D665590, |
Mar 23 2011 |
Topstar GmbH |
Chair |
| D683151, |
Sep 20 2012 |
Steelcase Inc |
Chair |
| D683574, |
Aug 15 2012 |
|
Chair backrest |
| D687660, |
Jun 05 2012 |
Zhongshan Shi Songlin Furniture Co., Ltd; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD |
Chair back frame |
| D689313, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
| D689319, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
| D690146, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
| D690547, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
| D694541, |
Dec 07 2012 |
NIGHTINGALE CORP |
Chair |
| D695538, |
Apr 16 2013 |
KUSCH+CO GMBH |
Seating furniture |
| D697330, |
May 10 2013 |
|
Seat |
| D697730, |
Sep 20 2012 |
Steelcase Inc |
Chair |
| D698165, |
Sep 20 2012 |
Steelcase Inc |
Chair |
| D699958, |
Sep 20 2012 |
Steelcase Inc |
Chair |
| D703966, |
Jun 13 2013 |
|
Chair frame |
| D704946, |
Jul 10 2013 |
|
Chair frame |
| D714563, |
Sep 27 2013 |
Scandinavian Business Seating AS |
Chair |
| D718544, |
Mar 17 2014 |
Chueng Shine Co., Ltd. |
Chair |
| D750911, |
Sep 12 2014 |
DONGGUAN KENTEC OFFICE SEATING CO , LTD |
Office chair |
| D755532, |
Sep 12 2014 |
DONGGUAN KENTEC OFFICE SEATING CO , LTD |
Office chair |
| D758774, |
Apr 24 2015 |
Steelcase Inc. |
Headrest assembly |
| D759415, |
Apr 24 2015 |
Steelcase Inc. |
Headrest |
| D760526, |
Apr 24 2015 |
Steelcase Inc. |
Headrest assembly |
| D781604, |
Apr 24 2015 |
Steelcase Inc. |
Chair |
| D781605, |
Apr 24 2015 |
Steelcase Inc. |
Chair |
| D792717, |
Jul 24 2015 |
|
Chair |
| D799842, |
Jan 27 2015 |
Dawon Chairs Co., Ltd; DAWON CHAIRS CO , LTD |
Office chair |
| D800469, |
May 13 2016 |
Vitra AG |
Chair |
| D800470, |
May 13 2016 |
Vitra AG |
Chair |
| D800471, |
May 13 2016 |
Vitra AG |
Chair |
| D800472, |
May 13 2016 |
Vitra AG |
Chair |
| D801066, |
May 13 2016 |
Vitra AG |
Chair |
| D801067, |
May 13 2016 |
Vitra AG |
Chair |
| D801068, |
May 13 2016 |
Vitra AG |
Chair |
| D801717, |
May 13 2016 |
Vitra AG |
Chair |
| D801718, |
May 13 2016 |
Vitra AG |
Chair |
| D801719, |
May 13 2016 |
Vitra AG |
Chair |
| D801741, |
Feb 10 2016 |
DONGGUAN CHANGYU FURNITURE CO LTD |
Office chair |
| D802315, |
May 13 2016 |
Vitra AG |
Chair |
| D802316, |
May 13 2016 |
Vitra AG |
Chair |
| D802953, |
May 13 2016 |
Vitra AG |
Chair |
| D838506, |
Sep 30 2016 |
Scandinavian Business Seating AS |
Chair |
| D859866, |
Mar 22 2017 |
|
Office chair |
| D863802, |
Aug 31 2017 |
Zhengxing Wang |
Office chair |
| D878839, |
Oct 13 2017 |
HANGZHOU ZHANYING TECHNOLOGY CO , LTD |
Chair back |
| D888450, |
Jun 24 2019 |
ZHEJIANG MOTOSTUHL FURNITURE CO., LTD |
Chair |
| D893907, |
Sep 30 2016 |
Scandinavian Business Seating AS |
Chair |
| D893908, |
Sep 30 2016 |
Scandinavian Business Seating AS |
Chair |
| D911728, |
Aug 26 2019 |
ZHEJIANG ZHONGWEI SMART FURNITURE CO., LTD. |
Chair |
| D912416, |
Aug 26 2019 |
ZHEJIANG ZHONGWEI SMART FURNITURE CO., LTD. |
Chair |
| D912418, |
Aug 26 2019 |
ZHEJIANG ZHONGWEI SMART FURNITURE CO., LTD. |
Chair |
| D912419, |
Aug 26 2019 |
ZHEJIANG ZHONGWEI SMART FURNITURE CO., LTD. |
Chair |
| D913004, |
Aug 26 2019 |
ZHEJIANG ZHONGWEI SMART FURNITURE CO., LTD. |
Chair |
| D918634, |
May 21 2019 |
|
Chair |
| D955767, |
May 29 2020 |
Henglin Home Furnishings Co., Ltd. |
Chair |
| D974784, |
Dec 09 2020 |
Humanscale Corporation |
Seat |
| D975459, |
Jun 07 2019 |
|
Office chair |
| ER1035, |
|
|
|
| ER5990, |
|
|
|
| Patent |
Priority |
Assignee |
Title |
| D548992, |
Mar 24 2006 |
HNI Corporation |
Chair |
| D568624, |
Oct 03 2007 |
Hurng Taih Plastic Master Batch Co., Ltd. |
Office chair |
| D585205, |
Mar 27 2008 |
Hurng Taih Plastic Master Batch Co., Ltd. |
Frame of the office chair |
| D595970, |
Jan 16 2008 |
KOKUYO CO , LTD |
Chair |
| D604527, |
Sep 16 2008 |
KOKUYO CO , LTD |
Chair |
| D609023, |
Oct 17 2008 |
KOKUYO CO , LTD |
Chair |
| D610822, |
Jan 21 2009 |
|
Office chair |
| D634558, |
Jul 02 2010 |
|
Chair |
| D638635, |
Oct 16 2008 |
ITOKI CORPORATION |
Chair |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a