FIG. 1 is a top perspective view of a duvet cover with a zipper;
FIG. 2 is a top perspective view thereof in a partially open state. The dashed lines showing environment (i.e., a duvet) of the design form no part of the claimed design;
FIG. 3 is a top view thereof showing a location of the zipper designated by a double arrowed dashed line extending along a periphery duvet cover;
FIG. 4 is a cross-sectional view taken along the portion marked 4 in FIG. 3;
FIG. 5 is a back view thereof with a single zipper in a fully zipped state;
FIG. 6 is a front view thereof with the single zipper in the fully zipped state;
FIG. 7 is a right-side view thereof with the single zipper in the fully zipped state;
FIG. 8 is a right-side view thereof with the single zipper in a fully unzipped state. The dashed lines showing environment (i.e., a duvet) of the design form no part of the claimed design;
FIG. 9 is a left-side view thereof with the single zipper in the fully zipped state;
FIG. 10 is a back view thereof with a double zipper in a fully zipped state;
FIG. 11 is a front view thereof with the double zipper in the fully zipped state;
FIG. 12 is a left-side view thereof with the double zipper in the fully zipped state;
FIG. 13 is a right-side view thereof with the double zipper in the fully zipped state;
FIG. 14 is a right-side view thereof with the double zipper in a fully unzipped state. The dashed lines showing environment (i.e., a duvet) of the design form no part of the claimed design; and,
FIG. 15 is a left-side view thereof with the double zipper in a fully unzipped state.
The dashed broken lines depict environment of the duvet cover with a zipper and portions of a duvet cover with a zipper that form no part of the claimed design. The dot-dashed broken lines represent boundaries of the claimed duvet cover and form no part of the claimed design. The duvet cover with a zipper is shown with a symbolic break in its width and length. The appearance of any portion of the article between the break lines forms no part of the design.