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Publication numberUSD474836 S1
Publication typeGrant
Application numberUS 29/164,636
Publication dateMay 20, 2003
Filing dateJul 30, 2002
Priority dateJul 30, 2002
Publication number164636, 29164636, US D474836 S1, US D474836S1, US-S1-D474836, USD474836 S1, USD474836S1
InventorsYung-Yu Chang
Original AssigneeYung-Yu Chang
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Air filter
US D474836 S1
Abstract  available in
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  1. The ornamental design for an air filter, as shown.

FIG. 1 is a perspective view of an air filter, showing my new desgin;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

U.S. ClassificationD23/365