ALEXANDRIA, Va., May 5 -- United States Patent no. 12,617,343, issued on May 5, was assigned to Airxcel Inc. (Wichita, Kan.).
"Retractable stairs for a recreational vehicle" was invented by Michael John Longest (Dayton, Tenn.), William Edward Mooneyham (Dayton, Tenn.), Robert Neil Lankford (Graysville, Tenn.), Michael James Shaver (Cleveland, Tenn.), Stacey L. Smith (Dayton, Tenn.), Norman Troy McGuffey (Cleveland, Tenn.), Steven Andrew Reffner (Cleveland, Tenn.) and John Alan Eaton Jr. (Bristol, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Retractable stairs for mounting in an exterior doorway of a recreational vehicle are provided with a spaced apart stringers and a tread extending between the strin...