TOMLINSON FORT JOHNSON, JR., APPELLANT,
v.
DUQUESNE LIGHT COMPANY, DOBLE ENGINEERING COMPANY, AND FRANK C. DOBLE, APPELLEES
TOMLINSON FORT JOHNSON, JR., APPELLANT,
DUQUESNE LIGHT COMPANY, DOBLE ENGINEERING COMPANY, AND FRANK C. DOBLE, APPELLEES
34 F.2d 1020
United States Court of Appeals for the Third Circuit (1929)
Opinion of the Court
This suit was brought for the infringement of United States letters patent No. 1,366,078, issued to Tomlinson Fort Johnson, Jr., January 18, 1921,,for a "new and useful method of locating faulty Buspension-insulators on live-wire transmission-lines.” The defenses are invalidity and noninfringement of the patent. Claims 6 and; 8 to 31, inclusive, are in issue. The learned District Judge dismissed the bill on the grounds that: (1) The patent does not set forth a patentable invention; (2) it was anticipated; and (3) the defendant does notinfringe.
The decree is affirmed, on the opinion of the District Court.