31.

Drone Operated Delivery Receptacle

Pleis, James. "Drone Operated Delivery Receptacle." U.S. Patent Application No. 15/289,295. https://patents.google.com/patent/US20170116568A1/en

Summary

This package receiver has the shape of a small house. On the roof there are two gates, which can automatically open if the drone with the package is detected nearby. When the user wants to take the package out of the small house he can open the gates at the front side of the house to take the package.