Legal Opinion

Young v. John McShain, Inc.

Court of Appeals for the Fourth Circuit

Decided August 18, 1942No. 4943PublishedCited by 15 opinions

1Opinion of the Court

PARKER, Circuit Judge.

This is an appeal in a patent infringement suit involving Young patents Nos. 1,-928,748 and 1,938,887. The defenses were invalidity and non-infringement; and the court below held both patents invalid as to the claims in suit.

Both patents are combination patents relating to concrete floor construction with the use of pre-fabricated concrete joists reinforced with steel. Patent No. 1,928,748 covers the combination of a plurality of pre-cast joists, having top and bottom longitudinal reinforcements with cross sheer strands welded thereto, and a floor slab of concrete which…

2Cases cited11 opinions

  1. Atlantic Works v. BradySupreme Court of the United States · 1883
  2. Hailes v. Van WormerSupreme Court of the United States · 1874
  3. Powers-Kennedy Contracting Corp. v. Concrete Mixing & Conveying Co.Supreme Court of the United States · 1930
  4. Richards v. Chase Elevator Co.Supreme Court of the United States · 1895
  5. Heald v. RiceSupreme Court of the United States · 1882

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3Cited by15 opinions

  1. S.A. Andes v. Versant Corporation, and First Washington Investments Corporation and Thomas F. HerrCourt of Appeals for the First Circuit · 1986
  2. Ockert v. Union Barge Line Corp.Court of Appeals for the Third Circuit · 1951
  3. Westwood Chemical, Inc. v. Owens-Corning Fiberglas CorporationCourt of Appeals for the Sixth Circuit · 1971
  4. Piedmont Interstate Fair Ass'n v. BeanCourt of Appeals for the Fourth Circuit · 1954
  5. Dome Laboratories v. Farrell Ex Rel. FarrellAlaska Supreme Court · 1979

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