ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,938, issued on April 22, was assigned to INTERCONTINENTAL GREAT BRANDS LLC (East Hanover, N.J.).
"Packaging box" was invented by Li Ma (JiangSu, China) and Marco Antonio Isasis Celis (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present utility model relates to a packaging box. The packaging box includes: an upper cover; and a lower cover. The upper cover and the lower cover can be combined together to form an internal packaging space therebetween. The packaging box further includes at least one spacer provided in the interior of at least one of the upper cover and the lower cover. When the upper cover and the lower cover are combined...