[The following note describes a series of patent assignments and has no documents attached to it. For that reason, a "no Documents found" message will appear if the "List Documents" button at the bottom of the note is used. To see the documents described here, use the "Which Series Notes?" button to enter the Series Notes or use the "Next Text" button to move to the first item in the series.]
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.
04/28/68 Stockbroker Printing InstrumentThomas A. EdisonDewitt C. Roberts
06/22/68Automatic Printing Telegraph Thomas A. EdisonJohn W. Lane
07/28/68Indicating Fire Alarm TelegraphThomas A. EdisonE. Baker Welch
10/13/68Electrographic Vote Recording and Registering ApparatusThomas A. EdisonDewitt C. Roberts
01/25/69Electromagnetic Printing TelegraphsThomas A. EdisonJoel H. Hills, William E. Plummer
05/03/69Improved MagnetographThomas A. EdisonE. Baker Welch, George L. Anders
07/06/69Improved MagnetographGeorge L. AndersSamuel S. Laws
08/17/69Electrical Printing InstrumentThomas A. EdisonSamuel S. Laws
08/27/69Automatic Electrical SwitchesThomas A. EdisonSamuel S. Laws
10/05/69Electrical Printing InstrumentSamuel S. Laws Gold & Stock Telegraph Co.
12/23/75Automatic TelegraphyThomas A. EdisonAmerican Automatic Telegraph Co.
02/08/76Autographic PrintingThomas A. EdisonRobert Gilliland
03/04/76Electrical Pen and Duplicating PressThomas A. EdisonLily G. Yeaton, Charles C. Yeaton
1876Prospectus & Incorporation PapersEdison Pen & Press Co.