Legal Opinion
N. O. Nelson Mfg. Co. v. F. E. Myers & Bro. Co.
Court of Appeals for the Sixth Circuit
Decided April 4, 1928No. 4921PublishedCited by 25 opinions
1Opinion of the Court
KNAPPEN, Circuit Judge.
Suit for infringement of three United States patents relating to the pumping art, numbered, respectively, No. 1,385,141, July 19, 1921, No. 1,385,143, of same date, and No. 1,393,306, October 11, 1921 — all issued to P. A. Myers. As declared in the respective patents, the first and third relate to power-heads; the second to pumping apparatus. By duo assignments, plaintiff appellee is the owner of all three patents. On final hearing the District Court held each patent valid and infringed.
In the art in question, the power-head is the structure, whether inclosed or open,…
2Cases cited16 opinions
- Topliff v. TopliffSupreme Court of the United States · 1892
- G. & C. Merriam Co. v. SaalfieldSupreme Court of the United States · 1916
- Weber Electric Co. v. E. H. Freeman Electric Co.Supreme Court of the United States · 1921
- Proudfit Loose Leaf Co. v. Kalamazoo Loose Leaf Binder Co.Court of Appeals for the Sixth Circuit · 1915
- D'Arcy Spring Co. v. Marshall Ventilated Mattress Co.Court of Appeals for the Sixth Circuit · 1919
11 more not listed; retrieve them via the Exa API.
3Cited by25 opinions
- General Motors Corporation v. Rubsam CorporationCourt of Appeals for the Sixth Circuit · 1933
- Minneapolis-Honeywell Regulator Co. v. Thermoco, Inc.Court of Appeals for the Second Circuit · 1941
- S. S. Kresge Co. v. Winget Kickernick Co.Court of Appeals for the Eighth Circuit · 1938
- National Battery Co. v. Richardson Co.Court of Appeals for the Sixth Circuit · 1933
- Levin v. CoeCourt of Appeals for the D.C. Circuit · 1942
20 more not listed; retrieve them via the Exa API.