The ornamental design for a canistervacuum, as shown and described.
FIG. 1 is a perspective view of a canister vacuum showing our new design, the details shown in broken lines form no part of the claimed design.
FIG. 2 is a right-side perspective view thereof;
FIG. 3 is a left-side perspective view thereof;
FIG. 4 is a left-side perspective view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right-side perspective view thereof;
FIG. 7 is a top perspective thereof; and,
FIG. 8 is a front elevational view thereof.
The canister base seen in FIG. 1, the wording that appears in the photographs, and the mounting recess in FIGS. 3 and 4 form no part of the claimed design.
The broken lines are for illustrative purposes only and form no part of the claimed design.