Among the few items not auctioned off by the Wilpons when Shea was demolished...the patent on Shea Stadium's innovative "Convertible Stadium."
This cutting edge technology patent covered the movable seats that let Shea host both baseball and football games. Sadly, this patent did not ensure the teams you watched from your movable seat would be good.
In honor of opening day, the good folks at The Essential Patent Blog
have published the Convertible Stadium patent. If you are keeping score at home, that's patent # 3,002,234. Enjoy the details here.The drawings, filed 53 years ago,
are especially interesting.