The ornamental design for a cupcover, as shown and described.
FIG. 1 is a top front perspective view of a cup cover showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a bottom rear perspective view thereof;
FIG. 9 is another top front perspective view of the cup cover, shown in an alternate position of use and in a condition of use with an exemplary cup; and,
FIG. 10 an exploded top front perspective view thereof, showing the exemplary cup removed.
The broken lines are shown for the purpose of illustrating both parts of the article as well as environmental subject matter of an exemplary cup. None of the broken lines form part of the claimed design.