Image ID
ICHi-032066
Headline
First United States patent certificate
Title (of Artwork/Object)
First Patent granted by the United States government, issued to Samuel Hopkins for a new process to produce pearl and potash.
Date Depicted
July 1, 1790
Date Created
July 1, 1790
Creator
United States. President (1789-1797 : Washington)
Creator Role
creator
Artwork/Object Depicted
manuscripts (document genre)
Copyright Notice
No known copyright restrictions.
Credit Line
Chicago History Museum, ICHi-032066
Inventory Number
1923.1000
Storage Location
Part of Washington, George, 1732-1799. George Washington papers (Chicago History Museum)
Acquisition Source
Purchased from the Gunther estate for 2000 dollars, according to a list dated April 28, 1920, in the archives of Chicago Historical Society.
Horizon Bib. No.
00067167
Max Pixels - Height
4923
Max Pixels - Width
5576
KEYWORDS
i32066
i32066.DNG
manuscripts (document genre)
1923.1000
Patents
United States Government
Washington, George
Potash industry
Trade
Hopkins, Samuel
United States
i032066
i32066
ICHi-32066
first united states patent certificate

Holograph patent certificate (letters patent), signed by George Washington, President, U.S., at the City of New York, July 1, 1790. Granted to Samuel Hopkins of Philadelphia (Pa.), for an apparatus and process for leaching wood ashes to make potash and pearl ash. Signed also by Edmund Randolph, attorney general, July 31, 1790. Seal is attached. Endorsed on verso by Thomas Jefferson, as delivered Aug. 4, 1790. This is believed to be the first patent certificate granted by the United States Government. Potash and pearl ash could produce potassium carbonate to be used in making soap and other commodities.

Holograph patent certificate (letters patent), signed by George Washington, President, U.S., at the City of New York, July 1, 1790. Granted to Samuel Hopkins of Philadelphia (Pa.), for an apparatus and process for leaching wood ashes to make potash and pearl ash. Signed also by Edmund Randolph, attorney general, July 31, 1790. Seal is attached. Endorsed on verso by Thomas Jefferson, as delivered Aug. 4, 1790. This is believed to be the first patent certificate granted by the United States Government. Potash and pearl ash could produce potassium carbonate to be used in making soap and other commodities.

5/28/2015