Queen & Co. v. Roentgen Mfg. Co.

J. B. McPHERSON, District Judge.

The patent in suit, No. 594,036, was granted in November, 1897, to Henry Lyman Sayen for an improvement in Roentgen ray tubes. Claims 2 and 3, which are especially involved in this controversy, were decided to be valid by Judge Kohlsaat of the Seventh Circuit, in the case of Queen & Co. v. Friedlander (C. C.) 149 Fed. 771, after a prolonged and strenuously contested litigation. His full and careful opinion was apparently convincing, for the result was accepted by the defendant without appeal. There is nothing whatever in the record, either of that case or of…