Legal Opinion
Queen & Co. v. R. Friedlander & Co.
U.S. Circuit Court for the Northern District of Illnois
Decided January 16, 1907No. 26,509PublishedCited by 6 opinions
In Equity. On final hearing.
1Opinion of the Court
KOHLSAAT, Circuit Judge.
This bill is filed to enjoin defendants from infringing patent No. 594,036, granted to H. L. Sayen, November 23, 1897, for an improvement in vacuum tubes. Claims 1, 2, and 3 are worded so broadly that they cover all the matters in dispute, so that' the inquiry is practically limited to them. They read as follows, viz.:
“(1) As a means for varying the pressure in a high-vacuum tube, a main circuit for operating the tube and a shunt-cireult for- varying the pressure.
“(2) In combination with a high-vacuum tube, a shunt-circuit arranged in proximity thereto, means connected…
2Cases cited3 opinions
- Elizabeth v. Pavement Co.Supreme Court of the United States · 1878
- Carlton v. BokeeSupreme Court of the United States · 1872
- Atlas Glass Co. v. Simonds Mfg. Co.Court of Appeals for the Third Circuit · 1900
3Cited by6 opinions
- Farbenfabriken of Elberfeld Co. v. KuehmstedU.S. Circuit Court for the Northern District of Illnois · 1909
- Merrell-Soule Co. v. Powdered Milk Co. of AmericaCourt of Appeals for the Second Circuit · 1915
- Merrell-Soule Co. v. Powdered Milk Co. of AmericaDistrict Court, W.D. New York · 1914
- A. Schrader's Son, Inc. v. Wein Sales Corp.District Court, E.D. New York · 1924
- Queen & Co. v. Roentgen Mfg. Co.U.S. Circuit Court for the District of Eastern Pennsylvania · 1908
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