Hedman Mfg. Co. v. Todd Protectograph Co.
Court of Appeals for the Seventh Circuit
Appeal from the District Court of the United States for the Ea tern Division of the Northern District pf Illinois. Suit by the Todd Protectograph Company against the PTedman Manufacturing Company and others. Decree for complainant, and defendants appeal.
Read the full summary
Appeal from the District Court of the United States for the Ea tern Division of the Northern District pf Illinois. Suit by the Todd Protectograph Company against the PTedman Manufacturing Company and others. Decree for complainant, and defendants appeal. The decree appealed from found valid and infringed claims 3, 4, and 5 of United States patent No. 793,249, to Todd, June 27, 1905, for improvements in printing apparatus designed to protect checks, drafts, and the like from alteration, by means of printing upon the instrument figures or numerals in such manner as to render impossible, or at…
1Opinion of the CourtArschurer, Circuit Judge
(after stating the facts as above). [1] The claims in controversy have to do, not with the mechanism whereby the printing means is caused to move and make the impression, but with the type itself and the platen with which it coacts in producing the impression upon the interposed instrument. The platen is of metal, having across its surface a regular series of parallel grooves or ridges, of shape to receive corresponding grooves or ridges across the type. The characters may be of any desired form. The following patent drawing 3- illustrates characters having the ridges across them, and Eigure…
2Cases cited6 opinions
- Vulcan Detinning Co. v. American Can Co.Supreme Court of New Jersey · 1907
- Associated Press v. International News ServiceDistrict Court, S.D. New York · 1917
- Whitaker v. ToddCourt of Appeals for the Third Circuit · 1916
- Todd Protectograph Co. v. New Era Mfg. Co.District Court, E.D. Pennsylvania · 1916
- Todd Protectograph Co. v. Hedman Mfg. Co.District Court, N.D. Illinois · 1919
1 more not listed; retrieve them via the Exa API.
3Cited by5 opinions
- Connecticut Telephone & Electric Co. v. Automotive Equipment Co.District Court, D. New Jersey · 1926
- American Ins. Co. v. LucasDistrict Court, W.D. Missouri · 1940
- Art Metal Works, Inc. v. Abraham & Straus, Inc.District Court, E.D. New York · 1933
- Art Metal Works, Inc. v. Abraham & Straus, Inc.Court of Appeals for the Second Circuit · 1934
- Art Metal Works, Inc. v. Abraham & Straus, Inc.Court of Appeals for the Second Circuit · 1934