US Patent Issued to Inter IKEA Systems on June 2 for "Mattress spring core" (Swedish Inventor)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,361, issued on June 2, was assigned to Inter IKEA Systems B.V. (Delft, Netherlands).

"Mattress spring core" was invented by Johan Kroon (Hoor, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mattress spring core including a sheet and a plurality of spring core units arranged on the sheet. The spring core units are arranged in longitudinal strings, the strings being attached to the sheet side by side to form a rectangular shaped mattress spring core. The sheet is configured to stabilize the rectangular shape of the mattress spring core by preventing the spring core units of a first string to be displaced relative the spring core units of an ad...