[The following note covers the entire court record for Edison Electric Light Company v. United States Electric Lighting Company]
This infringement suit was initiated by the Edison Electric Light Co. in 1885. The Edison interests claimed that the lamp patents of William E. Sawyer and Albon Man, which had been assigned to the United States Electric Lighting Co., infringed on Edison's patent for lamp filaments (U.S. Patent 223,898). Most of the testimony and exhibits from the 1881 patent interference case, Sawyer and Man v. Edison, were subsequently entered into the record of this case. Other testimony was heard in 1889 and 1890, and the appeal was argued in 1892. Depositions and exhibits from two other cases—Consolidated Electric Light Company v. McKeesport Light Company (the "McKeesport Case") and Edison Electric Light Company v. Westinghouse, Church, Kerr & Company (the "Trenton Feeder Case")—which were initiated at a later date but decided while this case was still being heard, were also entered into the record. The events detailed by the testimony and exhibits all occurred between 1878 and 1882. The original bill of complaint, filed in 1885, is bound with the patent interference (see Miscellaneous Bound Interferences). The Digest of Proofs and Index, which precedes the printed court records, provides a comprehensive name and subject index to the case.
[QD012B] Litigation Record, c. 1890 1890-00-00
[QD012B0001], Legal Pleading, Edison Electric Light Co, United States Electric Lighting Co, June 11th, 1886 1886-06-11
[QD012B0016], Legal Pleading, United States Electric Lighting Co, August 4th, 1886 1886-08-04
[QD012B0032], Legal Pleading, United States Electric Lighting Co, April 1st, 1889 1889-04-01
[QD012B0049], Legal Pleading, United States Electric Lighting Co, April 20th, 1889 1889-04-20
[QD012B0060], Legal Testimony, George Frederick Barker, October 19th, 1889 1889-10-19
[QD012B0186], Legal Testimony, Charles H Heeley, November 26th, 1889 1889-11-26
[QD012B0190], Legal Testimony, George Frederick Barker, November 29th, 1889 1889-11-29
[QD012B0199], Patent Issued, Thomas Alva Edison, January 27th, 1880 1880-01-27
[QD012B0205], Agreement, Edison Electric Light Co, Thomas Alva Edison, February 12th, 1880 1880-02-12
[QD012B0208], Incorporation Record, Edison Electric Light Co, October 16th, 1878 1878-10-16
[QD012B0211] Technical Note, October 21st, 1889 1889-10-21
[QD012B0248], Legal Decision, Germany. Patent Office, January 24th, 1884 1884-01-24
[QD012B0261], Legal Decision, Germany. Patent Office, April 5th, 1884 1884-04-05
[QD012B0264], Legal Decision, Germany. Patent Office, December 30th, 1884 1884-12-30
[QD012B0266], Legal Decision, Germany. General Court of Justice, March 9th, 1885 1885-03-09
[QD012B0280], Legal Decision, Great Britain. High Court of Justice, Charles Parker Butt, May 20th, 1886 1886-05-20
[QD012B0302], Legal Decision, Great Britain. Court of Appeal, January 31st, 1887 1887-01-31
[QD012B0325], Legal Decision, Great Britain. Court of Appeal, February 18th, 1889 1889-02-18
[QD012B0382], Legal Decision, U.S. Circuit Court. Western Pennsylvania, Joseph P Bradley, October 5th, 1889 1889-10-05