Patent X1: 1799-07-31, Manufacture of pot ash and pearl ash

X Number	Date	Inventor	City	Title	Status
X1	1790-07-31	Samuel Hopkins	Philadelphia, PA	Manufacture of pot ash and pearl ash	Recovered

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This Samuel Hopkins patent is the first US patent for an invention under a new U.S. patent statute that came into effect 1790-04-10. There was no patent drawing. See below for an image of the original patent grant, signed by President George Washington.

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Patent X1: 1799-07-31, Manufacture of pot ash and pearl ash

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