Patent
   D897708
Priority
Jun 06 2019
Filed
Jun 06 2019
Issued
Oct 06 2020
Expiry
Oct 06 2035
Assg.orig
Entity
unknown
2
24
n/a
The ornamental design for an ergonomic ball chair, as shown and described.

FIG. 1 is a top perspective view of an ergonomic ball chair showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevated view thereof;

FIG. 4 is a rear elevated view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right elevated view thereof; and,

FIG. 8 is a left elevated view thereof.

The broken lines showing of a wheel assembly in FIGS. 1-8, the broken lines showing of an arm rest assembly in FIGS. 1-8, and the broken lines showing of a rear support assembly in FIGS. 1-2, FIGS. 4-5, and FIGS. 7-8 are included for the purpose of showing environmental structure and form no part of the claimed design.

Tobler, Asja

Patent Priority Assignee Title
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