Beverage container cap

FIG. 1 is a first top perspective view of an ornamental design for a beverage container cap.

FIG. 2 is a second top perspective view of the beverage container cap of FIG. 1 .

FIG. 3 is a front elevation view of the beverage container cap of FIG. 1 .

FIG. 4 is a back elevation view of the beverage container cap of FIG. 1 .

FIG. 5 is a right-side elevation view of the beverage container cap of FIG. 1 .

FIG. 6 is a left-side elevation view of the beverage container cap of FIG. 1 .

FIG. 7 is a top plan view of the beverage container cap of FIG. 1 ; and,

FIG. 8 is a bottom plan view of the beverage container cap of FIG. 1 .

The beverage container cap includes a loop which may be in a stowed position as depicted in FIGS. 1, 3, 5, 6, and 7 or in an unstowed position as depicted in FIG. 2 . The loop is not visible in FIGS. 4 and 8 . The dashed lines in FIGS. 1-5 and 8 depict a threaded lower portion of the beverage container cap. The dashed lines in FIG. 6 depict a vacuum flask. The dashed lines form no part of the claimed design.