ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,863, issued on May 27.
"Method of assembling a modular ladder system" was invented by Charles J. MacKarvich (Atlanta).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of assembling a modular ladder system includes providing the modular ladder system in an unassembled configuration, the modular ladder system comprising a plurality of ladder modules stacked on a ladder base and comprising first and second ladder modules each defining a first end and a second end; removing the second ladder module from the ladder base; coupling the first end of the first ladder module to the second end of the second ladder module to define a ladder, the ladder de...