This timeline concentrates on the development, patenting, and potential impact of Lyda D. Newman's improved hairbrush.
Invention and Design
Before 1898
Newman likely conceived and designed her improved hairbrush prior to filing the patent application. The specifics of her design improvements remain unknown but were significant enough to warrant a patent.
Patent Application
November 15, 1898
The formal application for U.S. Patent No. 614,335, detailing the design and intended function of her improved hairbrush. This application included claims for originality and utility.
Patent approval
November 22, 1898
The patent number 614,335 was approved for the 'Hair Brush'.
Page talk:Invention of the Improved Hairbrush
