The ornamental design for a propanebottlebase, as shown and described.
FIG. 1 is a perspective view of a propane bottle base.
FIG. 2 is a plan view of the propane bottle base shown in FIG. 1.
FIG. 3 is a bottom view of the propane bottle base shown in FIG. 1.
FIG. 4 is an elevation of the propane bottle base shown in FIG. 1. The front, back left and right side elevations are identical.
FIG. 5 is a perspective view of a propane tank sitting in and on the propane bottle base shown in FIG. 1. The propane tank is elevated above a supporting surface to prevent bottom rust on the tank. The bolts spaced around the holding rim are tightened against the bottle maintaining it in an upright position.
FIG. 6 is a perspective view of an alternative embodiment of a propane bottle base used to support a propane bottle directly on a dry supporting surface.
FIG. 7 is a plan view of the alternative embodiment of the propane bottle base shown in FIG. 6 used to support a propane bottle directly on a dry supporting surface.
FIG. 8 is a bottom view of the alternative embodiment of the propane bottle base shown in FIG. 6 used to support a propane bottle directly on a dry supporting surface; and,
FIG. 9 is an elevation of the alternative embodiment shown in FIG. 6. It is noted that the elevation for the front, back, left, and right sides of the alternative embodiment of the propane bottle base used to support a propane bottle directly on a dry supporting surface are all identical.