Patent
   D741100
Priority
Jun 07 2013
Filed
May 29 2014
Issued
Oct 20 2015
Expiry
Oct 20 2029
Assg.orig
Entity
unknown
6
52
n/a
The ornamental design for a chair back frame, as shown and described.

FIG. 1 is a front perspective view of the chair back frame in an embodiment;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.

Chan, Eric

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D853768, Jan 12 2016 Interstuhl Bueromoebel GmbH & Co. KG Chair
D853769, Jan 12 2016 Interstuhl Bueromoebel GmbH & Co. KG Chair
D879491, Nov 15 2018 ZHEJIANG HENGLIN CHAIR INDUSTRY CO., LTD. Chair
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May 29 2014ITOKI CORPORATION(assignment on the face of the patent)
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