On August 3rd, 1874, a Canadian patent for an “Electric Light” was issued - This Day in Patents

PatentYogi_This Day in Patent History_1Aug 03

On August 3rd, 1874,  a Canadian patent for an “Electric Light” was issued to inventors Dr. Henry Woodward and Mathew Evans, of Toronto, Ontario. They sold their U.S. Patent to Thomas Edison.

Patent Information
Publication number: US181613 A
Patent Title: Improvement in electric lights
Publication type: Grant
Publication date: 29 Aug 1876
Filing date: 4 Jan 1875
Inventors: And Ernest Heimrod
Original Assignee: By Mesne As

US181613

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