Filed Nov. 1, 1993 and registered Apr. 2, 1996, the patent USD368485 was applied for the design (only) of a nose flute by Michel A. Paulus, belgian citizen of Walcourt.
It is deeply inspired by the shape of the original tin-plate Humanatone by James J. Stivers, but differs from it by its very long and flat mouth cape, and its air duct cover, which is a rounded plate (1 curve), instead of a toric slab (2 curves) ended with a plane.
There is no provision of specifications regarding a supposed production, but I assume the instrument was planned to be built from a metal plate (at least from a folded material), since Fig. 2 and 3 shows two little fixing flaps at the base of the air duct, quite symptomatic of early metal nose flutes.
This patent notably refers to 2 previous nose flute ones : Charles M. Berry [US2197993], and Ernest W. Davis [US3131590].