|US Patent: 1X|
|Manufacture Of Pot Ash And Pearl Ash|
Making Pot And Pearl Ashes
|Not known to have been produced|
||Jul. 31, 1790
USPTO pdf tiff
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Samuel Hopkins (inventor)
|This is the first recorded United States patent.
Only about 2000 of the almost 10000 X-patent documents were recovered.
Because of the Patent Office fire in Dec. 1836, little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.|