Legal Opinion
Hajek v. Radio Corp.
Court of Appeals for the Seventh Circuit
Decided March 20, 1936No. 5652PublishedCited by 4 opinions
1Opinion of the Court
LINDLEY, District Judge.
This is an appeal from a decree of the District Court finding valid and infringed three patents: 1,893,466, issued to Gowen, January 3, 1933; 1,718,206, to Mouromtseff, June 18, 1929; and 1,374,679, to Pratt, April 12, 1921. In the first-mentioned patent, claims 3, 6, 11, and 12 are involved, in the second, claim 4, and in the third, claims 2 and 4. Claim 2 of Pratt the court did not mention in its findings.
Gowen, 1,893,466, covers a specific form of construction of a vacuum tube, wherein are tied together all the elements so as to hold them in position as an…
2Cases cited3 opinions
- Paramount Publix Corp. v. American Triergon Corp.Supreme Court of the United States · 1935
- Pennsylvania Railroad v. Locomotive Engine Safety Truck Co.Supreme Court of the United States · 1884
- Automatic Arc Welding Co. v. A. O. Smith Corp.Court of Appeals for the Seventh Circuit · 1932
3Cited by4 opinions
- Johnson Laboratories, Inc. v. Meissner Mfg. Co.Court of Appeals for the Seventh Circuit · 1938
- International Cellucotton Products Co. v. Sterilek Co.Court of Appeals for the Second Circuit · 1938
- H C Products Co. v. Air Vent, Inc.District Court, C.D. Illinois · 1979
- Ramos v. State of New HampshireDistrict Court, D. New Hampshire · 2000