Antique light bulbs can still be found on the Internet! - (under rewrite)
U.S. Patent #223898 Electric LampIn 1878, Edison formed General Electric Edison Electric Light Company in New York City with several financiers, including J. P. Morgan and the Vanderbilt families. Edison made the first public demonstration of incandescent light bulb on December 31, 1879, in Menlo Park. On January 27, 1880, he filed a patent in the United States for the electric incandescent lamp.
On October 8, 1883, the U.S. patent office ruled that Edison's patent was based on the work of William Sawyer and was therefore invalid. Litigation continued until October 6, 1889, when a judge ruled that Edison's electric light improvement claim for "a filament of carbon of high resistance" was valid. To avoid a possible court battle with Joseph Swan, he and Swan formed a joint company called Ediswan to market the invention in Britain.
In 1880, Edison patented an electric distribution system. The first investor-owned electric utility was the 1882 Pearl Street Station, New York City. On September 4, 1882, Edison switched on the world's first electrical power distribution system, providing 110 volts direct current (DC) to 59 customers in lower Manhattan, around his Pearl Street generating station. On January 19, 1883, the first standardized incandescent electric lighting system employing overhead wires began service in Roselle, New Jersey.
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