I claim the ornamental design for a bottom flange of a façade panel, as shown and described.
FIG. 1 is a front perspective view of a bottom flange of a facade panel of the present invention;
FIG. 2 is a rear perspective view of a bottom flange of a facade panel of the present invention;
FIG. 3 is a front view of a bottom flange of a facade panel of the present invention;
FIG. 4 is rear view of a bottom flange of a facade panel of the present invention;
FIG. 5 is a left side view of a bottom flange of a facade panel of the present invention;
FIG. 6 is a right side view of a bottom flange of a facade panel of the present invention;
FIG. 7 is a top view of a bottom flange of a facade panel of the present invention; and,
FIG. 8 is a bottom view of a bottom flange of a facade panel of the present invention.
The broken lines in the figures are for contextual purposes or show the environment and form no part of the claimed design.
The portion between the dot dash broken lines in the drawings are broken away to indicate no particular length or width of the bottom flange of a facade panel and such pairs of dot dash broken lines themselves form no part of the claimed design. The material that may be visible between the dot dashed broken lines has been removed for clarity. The bottom flange of a facade panel is of indefinite height and width as shown by dot dashed break lines in the drawings.