Patent
   D834840
Priority
Mar 19 2015
Filed
Mar 29 2017
Issued
Dec 04 2018
Expiry
Dec 04 2033
Assg.orig
Entity
unknown
3
22
n/a
The ornamental design for a base seat of a ball chair, as shown and described.

FIG. 1 is a perspective view of a base seat of a ball chair showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a perspective view showing the design in use, in which the base seat is installed with a back and wheels of a ball chair.

The broken lines shown in FIGS. 1-4 depict environmental structure and portions of the base seat of a ball chair that form no part of the claimed design.

Hsu, Chih-Chan

Patent Priority Assignee Title
D939643, Dec 28 2020 Exercise ball
ER5524,
ER7836,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 29 2017CHIA LIN SPORT CO., LTD.(assignment on the face of the patent)
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