ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,397, issued on Sept. 1.

"Nested house" was invented by Nathan Peterson (Phoenix).

According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations of nested houses may include a first portion having a stationary wall, a convertible wall and a first floor, and a second portion having a first movable wall, a second movable wall, and a third movable wall. The second portion may be movable with respect to the first portion between a compact position and an extended position. The second portion may be configured to nest within the first portion. The convertible wall may be configured to rotate downwards to form a second floor of the second portion in the ext...