Comptograph Co. v. Adder Machine Co.
Court of Appeals for the D.C. Circuit
Hearing on an appeal by the plaintiff from a decree of the Supreme Court of the District of Columbia dismissing its bill filed for the infringement of certain patents. The facts are stated in the opinion.
1Opinion of the CourtJustice Hobb
This is an appeal from a decree in the supreme court of the District dismissing appellant’s bill for the infringement of certain letters patent relating to adding machines. Three patents are here involved: Eelt patent No. 586,021, issued September 22, 1896; Eelt patent No. 628,176, issued July 1, 1899; Eelt patent No. 661,121, issued November 6, 1900.
Both here and in the court below the controversy centered around the tabulator patent No. 628,176, the issue as to the other two being submitted upon the briefs. We will therefore first consider this patent. Three claims are involved, claims 1,…
2Cases cited6 opinions
- Mast, Foos & Co. v. Stover Manufacturing Co.Supreme Court of the United States · 1900
- Pennock v. DialogueSupreme Court of the United States · 1829
- Kendall v. WinsorSupreme Court of the United States · 1859
- Consolidated Fruit-Jar Co. v. WrightSupreme Court of the United States · 1877
- Universal Adding Mach. Co. v. Comptograph Co.Court of Appeals for the Seventh Circuit · 1906
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