ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,326, issued on Nov. 3.
"Fitted flat sheets" was invented by Derrick Dennis Defever (Plymouth, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flat sheet for a bed has a head end, a foot end, a right edge and a left edge defining a total area. A first area within the total area is made of a first material, and a second area within the total area is made of a second material different from the first material, the second material being a stretch material. The second area has a first portion having an edge that forms part of the right edge of the flat sheet and a second portion having an edge that forms part of the left edge of the flat sheet."
T...