Interesting Facts

Between 1790 and 1880, all US patents required a working model of the idea being patented. This requirement was phased out by the US Congress in 1870, but the US Patent Office continued to stipulate it as a requirement until 1880. The reason for getting rid of this rule was that creating working prototypes was an expensive process and it was difficult to find a trades person who could create the parts needed. It was eventually agreed that this laborious process held up the release of inventions ...


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