US D406421 S
FIG. 1 is a perspective view of a filter cartridge for an upright vacuum cleaner showing our new design, the cartridge is shown positioned on the body of an upright vaccum cleaner;
FIG. 2 is a perspective view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof, the left side being a mirror image;
FIG. 5 is a top plan view thereof;
FIG. 6 is a front elevational view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines in FIG. 1 are shown for illustrative purposes only and form no part of the claimed design.