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Patent
D781507
Priority
Mar 04 2016
Filed
Mar 04 2016
Issued
Mar 14 2017
Expiry
Mar 14 2032
Assg.orig
Entity
unknown
37
9
n/a
The ornamental design for a sight glass of welding mask , as shown and described.
FIG. 1 is a perspective view of a sight glass of welding mask 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 elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a reference view thereof when in use.
The broken lines in the drawing views are included for the purpose of illustrating the unclaimed portions of the sight glass of welding mask and form no part of the claimed design.
Huh, Moon Young
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Date
Maintenance Fee Events
n/a
Date
Maintenance Schedule
n/a