On this day in 1947 Dorothy Vincelle was granted the patent for Shampoo Cap. U.S. Patent No. 2,424,129.
This invention relates to a massage cap for use in connection with the washing and massaging of the hair and scalp; the main object being to provide a cap for the purpose so that the hair and head maybe thoroughly lathered and massaged without the lather being dissipated by getting on the hands or running down the face, thus enabling the desired operation being performed with maximum efficiency and with the least discomfort to the user.
