[W100C-F] Record Group 241 — Libers of Patent Assignments

Patent and Trademark Office

Title
[W100C-F] Record Group 241 — Libers of Patent Assignments
Description

Patent assignments were generally forwarded to the U.S. Patent Office, where they were copied into the Libers of Patent Assignments. A summary was entered into the Digest of Patent Assignments, and the original document was then returned to the assignee. These Edison-related assignments, which cover the period 1868-1876, pertain primarily to inventions in telegraphy. Also included is an assignment relating to Edison's electric pen.

Date Title Assignor Assignee
1868-04-28 Stockbroker Printing Instrument Thomas A. Edison Dewitt C. Roberts
1868-06-22 Automatic Printing Telegraph Thomas A. Edison John W. Lane
1868-07-28 Indicating Fire Alarm Telegraph Thomas A. Edison E. Baker Welch
1868-10-13 Electrographic Vote Recording and Registering Apparatus Thomas A. Edison Dewitt C. Roberts
1869-01-25 Electromagnetic Printing Telegraphs Thomas A. Edison Joel H. Hills, William E. Plummer
1869-05-03 Improved Magnetograph Thomas A. Edison E. Baker Welch, George L. Anders
1869-07-06 Improved Magnetograph George L. Anders Samuel S. Laws
1869-08-17 Electrical Printing Instrument Thomas A. Edison Samuel S. Laws
1869-08-27 Automatic Electrical Switches Thomas A. Edison Samuel S. Laws
1869-10-05 Electrical Printing Instrument Samuel S. Laws Gold & Stock Telegraph Co.
1875-12-23 Automatic Telegraphy Thomas A. Edison American Automatic Telegraph Co.
1876-02-08 Autographic Printing Thomas A. Edison Robert Gilliland
1876-03-04 Electrical Pen and Duplicating Press Thomas A. Edison Lily G. Yeaton, Charles C. Yeaton
1876 Prospectus & Incorporation Papers Edison Pen & Press Co.
URL
https://edisondigital.rutgers.edu/folder/W100C-F
Is Part Of
Patent and Trademark Office
Rights
Courtesy of the National Archives.
Identifier
W100C-F

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