Vacuum flask

Abstract

Description

FIG. 1 is a perspective view of vacuum flask showing my new design thereof;

FIG. 2 is a front elevational view, the rear elevational view being a mirror image thereof;

FIG. 3 is a left side elevational view, thereof;

FIG. 4 is a right side elevational view, thereof;

FIG. 5 is a top plan view thererof; and,

FIG. 6 is a bottom plan view thereof.

Claims

The ornamental design for vacuum flask, as shown and described.