Alright, a game console is almost certainly a utility patent (we care about the function, not the looks), so its patent in the United States would last twenty years.
I believe the SNES was released in this country in 1991, so no legal machine can be manufactured for another two years. But the NES does fall outside that timeframe, so Twesterm's console is probably legit, assuming they didn't run afoul of other, newer patents.







