US Patent 11992142 No-dig mailbox

A mailbox assembly that may be provided on a surface and freely movable by an end user from one location to another without digging a hole for the post. The mailbox assembly includes a post, a mail receptacle on an upper poste end, and a base on a lower base end. The base includes one or more hollow cavities for retaining ballast material to thereby move a center of gravity of the mailbox assembly towards the bottom surface, such that the mailbox can withstand 100 N of force applied perpendicular to the post without toppling. The post may also have one or more cavities for holding ballast material.