Thomas Edison applied on November 4, 1879
to the U.S. Patent and Trademark Office (USPTO) for a patent on his "Electric-Lamp."
Patent number 223898
A was awarded on January 27, 1880. Remember those years.
While searching for technical headlines today, I ran across an article in the
New York Times where they point out the first-ever mention of electric
lights in their newspaper. Per the article "The Arrival of Electric Light,"
"Since the early 19th century, inventors
had been tinkering with various methods of using electricity to produce light. The
New York Times first wrote of the technology on April 15, 1858. That day, 'Our Own
Correspondent' in Havana described celebrations of Holy Week that included 'an electric
light' cast across the harbor 'revealing the name of Queen Isabel.'"
Using my subscription to Newspapers.com, I found that edition of The New
York Times and captured the entire story here (click on taller thumbnail).
1858 was a full 21 years prior to Edison and his "muckers" having come up with the highly successful carbonized
cotton thread filament.
Also mentioned is "The first full
description of a light bulb appeared on Oct. 30, 1878. 'An interesting
exhibition of a new electric light ...,'" and "The Times first mentioned
Thomas Edison's light bulb the same day, on
page 4:: 'The result of Mr. Edison's experiments with the electric
light, which he is confident of being able to divide and distribute in such a way
as to make it available for all the ordinary purposes of illumination, is awaited
with great interest.'"
According to Wikipedia, the carbon arc lamp first appeared in the early part of the 19th century,
so that or some derivative of it might be what was observed by the article's author.
Posted January 11, 2016