Patent
   D818294
Priority
Mar 07 2016
Filed
Mar 07 2016
Issued
May 22 2018
Expiry
May 22 2033
Assg.orig
Entity
unknown
10
39
n/a
The ornamental design for a chair back frame, as shown and described.

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
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D857436, Sep 13 2017 Gary W., Feiner; FEINER, GARY W Back support
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D912420, Aug 26 2019 ZHEJIANG ZHONGWEI SMART FURNITURE CO., LTD. Chair
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D917218, Jan 21 2020 Zhongshan Shi Songlin Furniture Co., Ltd. Chair back frame
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D957846, Aug 20 2018 COOLSIDE LIMITED Travel accessory
ER1693,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 07 2016Zhongshan Shi Songlin Furniture Co., Ltd.(assignment on the face of the patent)
Mar 07 2016TSAI, HSUAN-CHINZHONGSHAN SHI SONGLIN FURNITURE CO , LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0379030897 pdf
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