United States v. Armour & Co.
402 U.S. 673 · Decided June 1, 1971 · Supreme Court of the United States
Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.
At a glance
United States v. Armour & Co. was decided on June 1, 1971 by a vote of 4–3. The Court affirmed the lower court's decision. Justice Thurgood Marshall wrote the opinion of the Court. SCDB classifies its main issue as “Mergers” in the Economic Activity area.
Read the opinion
Case details
- Citations
- 402 U.S. 673 · 91 S. Ct. 1752 · 29 L. Ed. 2d 256 · 1971 U.S. LEXIS 149
- Docket number
- 759
- Decided
- June 1, 1971
- Argued
- April 19, 1971
- Court era
- Burger Court
- Decision type
- Opinion of the Court (orally argued)
- Disposition
- Affirmed
- Outcome for petitioner
- The petitioning party did not receive a favorable disposition
- Vote
- 4–3
- Majority opinion
- Thurgood Marshall
- Opinion assigned by
- Warren E. Burger
- How the case arrived
- Appeal
- Issue (SCDB)
- Mergers
- Issue area
- Economic Activity
- Decision direction (SCDB)
- Conservative what this means
How the Justices voted
| Justice | Vote | Separate writing |
|---|---|---|
| Justice William O. Douglas | Dissent | Wrote an opinion |
| Justice John M. Harlan II | Majority | |
| Justice William J. Brennan Jr. | Dissent | |
| Justice Potter Stewart | Majority | |
| Justice Byron R. White | Dissent | |
| Justice Thurgood Marshall | Majority | Wrote an opinion |
| Chief Justice Warren E. Burger | Majority |
Did not participate: Hugo L. Black, Harry A. Blackmun.
Full case caption
United States v. Armour & Co. et al.
SCDB identifiers: case 1970-116, docket 1970-116-01.
Related decisions
Other cases on “Mergers”
- United States v. Greater Buffalo Press, Inc.
- Ford Motor Co. v. United States
- United States v. Phillipsburg National Bank & Trust Co.
- United States v. Armour & Co.
- Port of Portland v. United States
- United States v. Interstate Commerce Commission
Same Term, same area (Economic Activity)
- Lines v. Frederick
- Hickel v. Oil Shale Corp.
- Atlantic City Electric Co. v. United States
- U.S. Bulk Carriers, Inc. v. Arguelles
- Usner v. Luckenbach Overseas Corp.
- Zenith Radio Corp. v. Hazeltine Research, Inc.
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