Patent model
On July 31, 1790 inventor Samuel Hopkins of Pittsford, Vermont became the first person to be issued a patent in the United States. His patented invention was an improvement in the "making of Pot Ash by a new apparatus & process." These earliest patent law required that a working model of each invention be produced in miniature.
U.S. Patent No. 1
The first actual U.S. patent was issued on July 31, 1790, to Samuel Hopkins for manufacture of potash. The game's cover art states that "But if you have a time machine, it doesn't really matter who invented it first. All that matters is who gets to the Patent Office first." However, prior to the 2011 America Invents Act, the United States was the sole country with a "first to invent" rule. Unfortunately, proving prior conception when time travel is involved may present difficulties to the inventor.