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Patent
D600477
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Priority
May 18 2009
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Filed
May 18 2009
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Issued
Sep 22 2009
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Expiry
Sep 22 2023
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Assg.orig
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Entity
unknown
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8
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4
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n/a
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The ornamental design for a chair backrest, as shown and described.
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FIG. 1 is a perspective view of a 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 |
8240771, |
May 13 2004 |
Humanscale Corporation |
Mesh chair component |
D623449, |
May 13 2005 |
Humanscale Corporation |
Mesh backrest for a chair |
D666032, |
May 03 2012 |
|
Chair backrest |
D673401, |
May 13 2005 |
Humanscale Corporation |
Chair support structure |
D698591, |
Dec 05 2012 |
SIDIZ, INC. |
Chair back |
D750911, |
Sep 12 2014 |
DONGGUAN KENTEC OFFICE SEATING CO , LTD |
Office chair |
D773874, |
Apr 08 2015 |
|
Chair backrest |
D809842, |
Jun 22 2017 |
|
Chair backrest |
Patent |
Priority |
Assignee |
Title |
D540579, |
Aug 18 2006 |
|
Chair backrest |
D540580, |
Dec 31 2005 |
|
Chair backrest |
D577519, |
Oct 18 2007 |
|
Chair backrest |
D582170, |
May 16 2008 |
|
Chair |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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Maintenance Fee Events |
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Maintenance Schedule |
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