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PTO
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Dossier
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Patent
D905489
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Priority
Aug 24 2018
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Filed
Mar 01 2019
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Issued
Dec 22 2020
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Expiry
Dec 22 2035
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Assg.orig
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Entity
unknown
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2
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12
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n/a
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The design for backrest, as shown and described.
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FIG. 1 is a front view of backrest showing my new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a perspective view thereof,
FIG. 8 is a top view in a used condition thereof; and,
FIG. 9 is a bottom view in a used condition thereof.
Zhu, Wenbin
| Patent |
Priority |
Assignee |
Title |
| 7278688, |
Oct 04 2006 |
|
Elastic support structure for a human body to lean against |
| 7427107, |
Aug 10 2006 |
YANG, PO HSUAN; HWONG, SHUN |
Movable backrest for a chair |
| 9585484, |
Aug 11 2015 |
Sing Bee Enterprise Co., Ltd.; SING BEE ENTERPRISE CO , LTD |
Back support cushion device for chair |
| 20070246988, |
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| 20100148554, |
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| 20100264718, |
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| D565872, |
Aug 06 2007 |
|
Double backrest of a chair |
| D582707, |
Mar 17 2008 |
RGP Dental, Inc. |
Seat back |
| D799234, |
May 09 2016 |
DAKANG HOLDING GROUP CO., LTD. |
Chair |
| DE202015005534, |
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| DE202016007410, |
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| KR100904742, |
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| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a