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Patent
D778660
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Priority
Feb 01 2016
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Filed
Feb 01 2016
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Issued
Feb 14 2017
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Expiry
Feb 14 2032
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Assg.orig
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Entity
unknown
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5
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8
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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 |
D548992, |
Mar 24 2006 |
HNI Corporation |
Chair |
D596430, |
Mar 19 2009 |
|
Chair backrest |
D596885, |
May 05 2009 |
|
Chair backrest |
D652223, |
Oct 09 2008 |
Okamura Corporation |
Chair |
D652646, |
Oct 09 2008 |
Okamura Corporation |
Chair |
D654709, |
Oct 09 2008 |
Okamura Corporation |
Chair |
D724880, |
Sep 29 2014 |
Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD |
Chair back frame |
D733446, |
Sep 26 2013 |
Okamura Corporation |
Chair |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a