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Patent
D686013
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Priority
Dec 23 2011
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Filed
Dec 23 2011
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Issued
Jul 16 2013
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Expiry
Jul 16 2027
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Assg.orig
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Entity
unknown
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0
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11
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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 view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a right side thereof mounted on a chair.
Wherein the broken lines are shown for illustrative purposes only and form no part of the claimed design.
Hsiao, Yun-Cheng
Patent |
Priority |
Assignee |
Title |
Patent |
Priority |
Assignee |
Title |
6945601, |
Dec 23 2003 |
|
Multi-stage backrest assembly |
7303232, |
Dec 07 2006 |
|
Backrest adjusting device for office chairs |
D507910, |
Jun 09 2004 |
BOCK 1 GmbH & Co. KG |
Headrest |
D510671, |
Nov 25 2003 |
|
Backrest frame of a chair |
D580198, |
Mar 17 2008 |
|
Chair back |
D601830, |
Oct 30 2008 |
True Seating Concepts, LLC |
Frame for a chair back |
D641572, |
Feb 01 2010 |
FUH Shyan Co., Ltd. |
Chair back frame |
D645683, |
Jan 18 2011 |
|
Seatback frame |
D645684, |
Jan 18 2011 |
|
Combined seatback frame |
D661916, |
Jan 18 2011 |
|
Office chair |
D673399, |
Aug 26 2011 |
|
Seatback frame |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a