PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
Patent
D661136
|
Priority
Jul 08 2010
|
Filed
Jul 08 2010
|
Issued
Jun 05 2012
|
Expiry
Jun 05 2026
|
|
Assg.orig
|
|
Entity
unknown
|
22
|
13
|
n/a
|
|
|
The ornamental design for a chair backrest, as shown and described.
|
FIG. 1 is a perspective view of the chair backrest showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Su, Tung-Hua
Patent |
Priority |
Assignee |
Title |
D666032, |
May 03 2012 |
|
Chair backrest |
D673401, |
May 13 2005 |
Humanscale Corporation |
Chair support structure |
D683574, |
Aug 15 2012 |
|
Chair backrest |
D689312, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
D689314, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
D689317, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
D689318, |
Sep 20 2012 |
Steelcase Inc. |
Chair |
D709312, |
Oct 17 2012 |
Okamura Corporation |
Chair |
D728292, |
Nov 12 2013 |
Kokuyo Furniture Co., Ltd. |
Chair |
D750911, |
Sep 12 2014 |
DONGGUAN KENTEC OFFICE SEATING CO , LTD |
Office chair |
D763587, |
Oct 14 2014 |
Allseating Corporation |
Chair |
D772592, |
Nov 01 2015 |
|
Chair backrest |
D774814, |
Sep 06 2016 |
Assa Group, Inc. |
Backrest for a chair |
D807448, |
Jun 01 2015 |
Dyaco International Inc. |
Fall prevention attachment for exercise machine |
D809842, |
Jun 22 2017 |
|
Chair backrest |
D816362, |
Nov 28 2016 |
|
Chair |
D818294, |
Mar 07 2016 |
Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD |
Chair back frame |
D895335, |
Sep 27 2018 |
Kokuyo Co., Ltd. |
Chair |
D909084, |
Oct 22 2019 |
Henglin Home Furnishings Co., Ltd. |
Chair |
D916477, |
Jan 24 2019 |
|
Office chair |
D925956, |
Nov 22 2017 |
Office Depot, Inc. |
Chair |
ER3296, |
|
|
|
Patent |
Priority |
Assignee |
Title |
D493627, |
Sep 27 2002 |
|
Arm chair |
D514832, |
Oct 02 2003 |
Zhejiang Himax Furniture Industry Corp Ltd. |
Chair |
D540080, |
Oct 11 2005 |
|
Chair backrest |
D540081, |
Aug 18 2006 |
|
Chair backrest |
D540579, |
Aug 18 2006 |
|
Chair backrest |
D540580, |
Dec 31 2005 |
|
Chair backrest |
D543398, |
Jun 19 2006 |
|
Chair backrest |
D579695, |
Mar 17 2008 |
|
Chair frame |
D580198, |
Mar 17 2008 |
|
Chair back |
D580199, |
Jul 02 2008 |
|
Chair backrest |
D582170, |
May 16 2008 |
|
Chair |
D596430, |
Mar 19 2009 |
|
Chair backrest |
D604071, |
Jul 30 2009 |
|
Chair backrest |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a