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Patent
D736551
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Priority
Sep 23 2013
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Filed
Sep 23 2013
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Issued
Aug 18 2015
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Expiry
Aug 18 2029
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Assg.orig
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Entity
unknown
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2
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11
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n/a
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The ornamental design for an elevating part of a chair back, as shown and described.
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FIG. 1 is a perspective view of an elevating part of a chair back showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view of an embodiment of an elevating part of a chair back.
The broken lines shown in the drawing are for illustrative purposes only and form no part of the claimed design.
Lai, Yu-Shan, Lai, Yen-Chuan
Patent |
Priority |
Assignee |
Title |
D793788, |
Jan 08 2015 |
|
Chair back adjuster |
D959183, |
Jul 22 2021 |
|
Back support for vehicle seats |
Patent |
Priority |
Assignee |
Title |
2524624, |
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|
4043592, |
Sep 05 1975 |
Steelcase Inc. |
Adjustable seat back mechanism |
4749230, |
Apr 23 1987 |
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Height adjusting device for chair backrest |
5037158, |
Jan 16 1990 |
BANK OF AMERICA, N A |
Height adjustment mechanism for chair back |
5597204, |
Aug 04 1995 |
Herman Miller, Inc. |
Height adjustment device |
5951107, |
Oct 28 1998 |
|
Height adjusting device with audible feedback |
6273384, |
May 22 1998 |
Unit Press Limited |
Chair back adjustment mechanism |
6315362, |
May 18 2001 |
Yi Chun Enterprise Ltd. |
Height adjustment mechanism for chair backrest or arm |
6343840, |
May 18 2001 |
Yi Chun Enterprise Ltd. |
Height adjustment mechanism for chair backrest or arm |
8579376, |
Feb 01 2011 |
|
Device for adjusting the height of the backrest of an office chair |
8960799, |
Aug 16 2011 |
YOON, WOOK |
Lumbar support seat |
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