Wearable Chair Patent

This is hilarious – a Wearable Chair patent that was actually approved. U.S. Patent Number D249987 has been issued to Darcy Robert Bonner on October 24, 1978 – that is nearly 30 years ago and until now we haven’t seen any of these Wearable Chairs around. I wonder what’s the hold up, or is the floor a convenient place to rest those tired legs after a long day of shopping?