The ornamental design for a boilingpot, as shown and described.
1. Boiling pot
1.1 is a front elevation view of a boiling pot showing our new design; 1.2 is a rear elevation view thereof; 1.3 is a left side elevation view thereof; 1.4 is a right side elevation view thereof; 1.5 is a top plan view thereof; 1.6 is a bottom plan view thereof; and 1.7 is a perspective view thereof; the present product is used for boiling water or cooking food; the outer wall of the pot is made of transparent material.
The broken lines in FIGS. 1.1-1.7 depict portions of the boiling pot that form no part of the claimed design.