when did mcdonnell douglas go out of business
McDonnell Douglas Following Boeing's 1996 acquisition of Rockwell's North American division, McDonnell Douglas merged with Boeing in August 1997 in a US $13 billion stock swap, with Boeing as the surviving company.[1][57] Boeing adopted the McDonnell Douglas logo, which shows the globe being encircled in tribute to the first aerial circumnavigation which was accomplished in 1924 using Douglas aircraft.
Willis Tower Although Sears' naming rights expired in 2003, the building continued to be called the Sears Tower for several years. In March 2009, London-based insurance broker Willis Group Holdings agreed to lease a portion of the building, and obtained the building's naming rights.[44] On July 16, 2009, the building was officially renamed Willis Tower.[45] On August 13, 2012, United Airlines announced it would move its corporate headquarters from 77 West Wacker Drive to Willis Tower.[6]