FIG. 1 is an exploded perspective view of a cleaning pen showing my new design;
FIG. 2 is another exploded perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a perspective view of the cleaning pen where the cleaning pen body is received in the pen holder;
FIG. 10 is another perspective view of FIG. 9 with the pen cap covered on the cleaning pen body;
FIG. 11 is an enlarged view of portion 11 shown in FIG. 1;
FIG. 12 is an enlarged view of portion 12 shown in FIG. 2; and,
FIG. 13 is an enlarged bottom plan view of FIG. 1.
The dash-dash broken lines immediately adjacent to the shaded areas depict the bounds of the claimed design, while all other dash-dash broken lines are directed to portions of the cleaning pen, both form no part of the claimed design. The dot-dash broken lines represent boundaries of the enlarged portions and form no part of the claimed design.