The ornamental design for a pencilsharpener, as shown and described.
FIG. 1 is a front elevational view of the pencil sharpener showing my design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a front perspective view thereof;
FIG. 8 is a front perspective view thereof illustrating the pencil and lower cover being separated from the top compartment; and,
FIG. 9 is a bottom plan view thereof with the lower cover removed for ease of illustration.
The broken lines in FIGS. 1 and 3 through 9 showing the pencil and in FIG. 9 showing the blade and surface of the inside of the top are included for the purpose of showing portions that form no part of the claimed design.