United States v. E. I. Du Pont de Nemours & Co.

366 U.S. 316 · Decided May 22, 1961 · Supreme Court of the United States

At a glance

United States v. E. I. Du Pont de Nemours & Co. was decided on May 22, 1961 by a vote of 4–3. The Court affirmed the lower court's decision in part, reversed or vacated it in part, and remanded the case. Justice William J. Brennan Jr. wrote the opinion of the Court. SCDB classifies its main issue as “Mergers” in the Economic Activity area.

Read the opinion

• CourtListener (Free Law Project) — opinion text
• Library of Congress — official U.S. Reports scan

Case details

How the Justices voted

Did not participate: Tom C. Clark, John M. Harlan II.

Full case caption

United States v. E. I. Du Pont de Nemours & Co. et al.

SCDB identifiers: case 1960-097, docket 1960-097-01.

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error