The ornamental design for a paperproduct, as shown and described.
The sole FIGURE is a top plan view of a paper product showing our new ornamental design.
The broken line showings depict environmental subject matter only and form no part of the claimed design. The broken lines shown along the border of the figures depict the boundaries of one repeat unit of the claimed design and indicate that the design may continue uniformly in one or more directions, no specific length or width of the paper product being claimed.
The surfaces or portions not shown in the drawings or described in the specification form no part of the claimed design.