Dalton Adding Mach. Co. v. Rockford Milling Mach. Co.
Court of Appeals for the Seventh Circuit
Appeal from the District Court of the United States for the Eastern Division of the Northern District of Illinois; Arthur E. Sanborn, Judge. Suit by the Dalton Adding Machine Company and the Addograph Manufacturing Company against the Rockford Milling Machine Company and others. From a decree for defendants (253 Fed. 187), plaintiffs appeal.
1Opinion of the Court
BAKER, Circuit Judge.
Appellants, owners of patent No. 1,039,-130, which was issued on September 24, 1912, to Hopkins, for a combined writing and adding machine, sought unsuccessfully in the trial court to suppress an adding machine made by appellees under the Sundstrand patent, No. 1,198,487, September 19, 1916.
Claims to the number of 284 are contained in the Hopkins patent. *423Of these 44 were insisted upon at the trial and are here under the assignments of error. Following the oral argument, an extended consideration of 1,983 pages of record and 528 pages of briefs, and examinations of…
2Cases cited4 opinions
- Stromberg Motor Devices Co. v. Zenith Carburetor Co.Court of Appeals for the Seventh Circuit · 1918
- Loew Supply & Mfg. Co. v. Fred Miller Brewing Co.Court of Appeals for the Seventh Circuit · 1905
- Milwaukee Carving Co. v. Brunswick-Balke Collender Co.Court of Appeals for the Seventh Circuit · 1903
- National Regulator Co. v. Powers Regulator Co.Court of Appeals for the Seventh Circuit · 1908
3Cited by2 opinions
- Kenyon v. Automatic Instrument Co.District Court, W.D. Michigan · 1950
- Burroughs Adding Mach. Co. v. Rockford Milling Mach. Co.Court of Appeals for the Seventh Circuit · 1923