id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
en-wikipedia-org-6629		Timeline of United States inventions (1890–1945) - Wikipedia			.html	text/html	26849	2654	71	109) into law which proclaimed that patents were to be authorized for "any useful art, manufacture, engine, machine, or device, or any improvement therein not before known or used."[6] On July 31, 1790, Samuel Hopkins of Philadelphia, Pennsylvania, became the first person in the United States to file and to be granted a patent under the new U.S. patent statute.[7] The Patent Act of 1836 (Ch. 357, 5 Stat. Throughout the years and with many alterations made to the stop sign, the current version with white block-lettering on a red background that is used in the United States as well as emulated in many other countries around the world today, did not come into use until the Joint Committee on Uniform Traffic Control Devices adopted the design in 1975.[13]	./cache/en-wikipedia-org-6629.html	./txt/en-wikipedia-org-6629.txt