The ornamental design for a double-seamed corner for fitted sheets, as shown and described.
FIG. 1 is a top perspective view of a double-seamed corner for fitted sheets showing my new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The shade lines in the Figures show contour and not surface ornamentation.
The evenly spaced broken lines in the figures depict environmental subject matter only and form no part of the claimed design. The dot-dot dashed broken lines represent the boundary of the design and form no part of the claim.