Sony Corp. of America v. Universal City Studios, Inc.

464 U.S. 417 (1984)· Docket No. No. 81-1687· Opinion by Justice John Paul Stevens (5-4 (Majority))

Ontological Knowledge Graph Fingerprint

Platform Liability & Intermediary Immunity

Niche Legal Sub-Discipline Tags:

#platform-framing-immunityActive Circuit Split

Whether embedding, framing, or in-line linking to third-party hosted content violates the public display right under 17 U.S.C. § 106(5).

↳ Hook: 17 U.S.C. § 106(5) (Public Display Right)Dossier

#computational-fair-useSettled Safe Harbor

Mass downloading and vector conversion of copyrighted text, imagery, and code for analytical ingestion where the end-user query output is non-substitutive.

↳ Hook: 17 U.S.C. § 107 (Factor 1 Transformativeness)Dossier

Ontologically Correlated Precedents (4):Sorted by Shared Sub-Discipline Alignment

Campbell v. Acuff-Rose50% MATCH

#computational-fair-use

Supreme (1994)Inspect Precedent

Warhol v. Goldsmith50% MATCH

#computational-fair-use

Supreme (2023)Inspect Precedent

Google v. Oracle50% MATCH

#computational-fair-use

Supreme (2021)Inspect Precedent

Authors Guild v. Google33% MATCH

#computational-fair-use

United (2015)Inspect Precedent

BINDING · NOT OVERRULED

Bedrock SCOTUS safe harbor standard governing dual-use computing technologies.

Supreme Court of the United StatesReviewed 2026-08-25

Editorial assessment, not a commercial citator result. Verify against the primary source before relying on it.

OPERATIVE SIGNALS & RISK DISSECTION

BINDING PRECEDENT

Operative Judicial Rule

Manufacturers of dual-use technologies capable of substantial non-infringing uses are immune from contributory copyright liability.

Practical Tech Impact

Insulates open-weight model weights and local compute software from vicarious liability based on third-party user generation.

Precedential Standing & Risk

Binding SCOTUS Precedent (5-4)

Formal Judicial Holding:

“The sale of copying equipment does not constitute contributory infringement if the product is widely used for legitimate, unobjectionable purposes or is capable of substantial non-infringing uses. Private non-commercial home time-shifting of free television broadcasts is fair use.”

Factual Background:

Sony manufactured and sold Betamax video tape recorders (VTRs). Universal City Studios and Walt Disney Productions owned copyrights on broadcast television programs and sued Sony, claiming that consumers were recording copyrighted shows and that Sony was contributorily liable for facilitating mass infringement.

Procedural Posture & Issue:

On writ of certiorari to the United States Court of Appeals for the Ninth Circuit, which had reversed the District Court and found Sony contributorily liable for manufacturing Betamax video recorders.

Issue: Whether the manufacturer of a dual-use recording device is contributorily liable for copyright infringement committed by end users, and whether private home time-shifting is fair use.

Judicial Reasoning & Statutory Construction

1.The Staple Article of Commerce Doctrine: Borrowing from patent law (35 U.S.C. § 271(c)), a technology manufacturer is immune from contributory liability if the device has substantial non-infringing uses.
2.Time-Shifting as Fair Use: Recording a free broadcast program to watch at a more convenient time is a non-commercial, non-injurious fair use under 17 U.S.C. § 107.
3.Protection of Innovation: Imposing secondary copyright liability on dual-use general-purpose technologies would grant copyright holders an impermissible veto over technological progress.

Doctrinal Significance & Precedential Legacy:

Sony created the Betamax Doctrine—the cornerstone safe harbor protecting general-purpose computing, VCRs, MP3 players, BitTorrent, P2P networks (subject to Grokster inducement limitations), and open-source generative AI models from strict secondary copyright liability.

Statutory Hooks & Precedents Cited:

17 U.S.C. § 10617 U.S.C. § 10735 U.S.C. § 271(c)Kalem Co. v. Harper Brothers, 222 U.S. 55 (1911)Henry v. A.B. Dick Co., 224 U.S. 1 (1912)

Downstream Impact:

Protected the consumer electronics and personal computing industries throughout the 1980s and 1990s.Core doctrinal defense asserted by open-weight AI developers (Meta LLaMA, Stability AI, Mistral) against secondary copyright claims.

Canonical Bluebook / APA Citation:Official CourtListener / Justia Repository

Sony Corp. of America v. Universal City Studios, Inc., 464 U.S. 417 (1984).