Patent Models

A US Patent Office Model by SH Rhodes of a device for storing and discharging oil with 1878 tag

p4A ItemID F7963176
A Case Patent Model for Henderson's Self-Acting Wagon Brake

p4A ItemID F7940028
A Patent Model of a Backrest for Invalids by W.F. Brown

p4A ItemID F7935633
An American Crying Baby Patent Model by Robt. F. Clay

p4A ItemID F7927319

U.S. Invention Patent Models

Patent models are unique to a brief period of American history, when U.S. patent law required that all inventors submit a scale model of their invention in order to be granted a patent. With the recision of those laws in the late 1800s, models were no longer required, and the collections of the Patent Office’s 19th century models were placed in storage until budget constraints eventually forced the government to dispose of them, pursuant to an Act of Congress.


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