Patent
   D650617
Priority
Mar 19 2010
Filed
Mar 19 2010
Issued
Dec 20 2011
Expiry
Dec 20 2025
Assg.orig
Entity
unknown
60
9
n/a
The ornamental design for main frame of chairs, as shown and described.

FIG. 1 is the front elevational view of main frame of chairs;

FIG. 2 is the rear elevational view thereof;

FIG. 3 is the right side elevational view thereof;

FIG. 4 is the left side elevational view thereof;

FIG. 5 is the top plan view thereof;

FIG. 6 is the bottom plan view thereof; and,

FIG. 7 is the main view thereof.

Chen, Yucheng

Patent Priority Assignee Title
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D974784, Dec 09 2020 Humanscale Corporation Seat
D975459, Jun 07 2019 Office chair
ER1035,
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