This primary source comes from the Records of the Patent and Trademark Office.
National Archives Identifier:
2524939Full Citation: George Washington Carver’s Patent for a Cosmetic and Process of Producing the Same; 1/6/1925; 1522176; Selected Patent Files, 1840–2005; Records of the Patent and Trademark Office, Record Group 241; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/george-washington-carvers-patent-for-cosmetic-and-process, March 28, 2025]