History of the United States II / Unit 3 USH2 0301 short lesson, about 20 seconds
The Patent Boom
Captions available
The idea
American inventors registered two hundred seventy-six inventions in the patent system's first decade, and about sixty thousand in total by eighteen sixty.
In practice
Nearly four hundred fifty thousand patents between eighteen sixty and eighteen ninety alone.
Where people slip
Another two hundred thirty-five thousand followed in the eighteen nineties. Invention was becoming an industry of its own.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
- Nothing. This is a starting point.
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