Legal Opinion
Permo, Inc. v. Hudson-Ross, Inc.
Court of Appeals for the Seventh Circuit
Decided January 19, 1950No. 9875_1PublishedCited by 16 opinions
1Opinion of the Court
DUFFY, Circuit Judge.
This is a suit for patent infringement. Plaintiff Astatic Corporation is the owner and plaintiff Permo, Inc., the exclusive licensee of Semple Patent 2,325,343 covering a phonograph needle, issued July 27, 1943, on application filed January 28, 1942. Defendant M. A. Miller Manufacturing Co. manufactures the accused needles and defendant Hudson-Ross, Inc., has sold some. Only Claim 1 of the patent is here in issue. The district court held Claim 1 invalid, but infringed if valid.
Claim 1 is broadly stated; it calls for four elements: “A record engaging stylus (needle) for a…
2Cases cited17 opinions
- Seymour v. OsborneSupreme Court of the United States · 1871
- White v. DunbarSupreme Court of the United States · 1886
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1940
- Alexander Milburn Co. v. Davis-Bournonville Co.Supreme Court of the United States · 1926
- Dwight & Lloyd Sintering Co. v. GreenawaltCourt of Appeals for the Second Circuit · 1928
12 more not listed; retrieve them via the Exa API.
3Cited by16 opinions
- Sterner Lighting, Inc. v. Allied Electrical Supply, Inc.Court of Appeals for the Fifth Circuit · 1970
- Harrington Manufacturing Co., Inc., Plaintiff-Appellant-Cross v. Idas B. White, Defendant-Appellee-CrossCourt of Appeals for the Fifth Circuit · 1973
- Serge A. Scherbatskoy v. United States Steel Corporation and Sperry Rand CorporationCourt of Appeals for the Seventh Circuit · 1961
- Texas Co. v. Globe Oil & Refining Co.District Court, N.D. Illinois · 1953
- Sperry Rand Corporation, in 13,678 v. Knapp-Monarch Company, in 13,679Court of Appeals for the Third Circuit · 1962
11 more not listed; retrieve them via the Exa API.