Sidney DeLong

Professor of Law
Curriculum Vitae


Sullivan Hall 424
(206) 398-4013


B.A., Vanderbilt University, 1969
J.D., Yale University Law School, 1974; chair, Yale Moot Court; winner, Harlan Fiske Stone Prize for Appellate Competition; winner, Sutherland Cup Moot Court Competition
Admitted to practice in Colorado; U.S. District Court, District of Colorado; U.S. Court of Appeals for the Tenth Circuit


Commercial Law


Contracts (CONT-105-B)
Remedies (REMD-300-A)


Professor DeLong graduated from Vanderbilt University in 1969 with a BA in philosophy and obtained a J.D. from Yale Law School in 1974, after two years in the U.S. Army. He was Chairman of the Moot Court Board. He then practiced in Denver, Colorado for 11 years as a civil litigator, doing trial and appellate work in complex cases involving construction claims, employment, antitrust, class actions, breach of contract, fraud, and insurance insolvency. He has taught courses in Contracts, Sales, Secured Transactions, Payment Systems, Remedies, Jurisprudence, The Jurisprudence of Social Justice, Law and Interpretation, Professional Responsibility, and Legal Writing, and has co-taught Complex Civil Litigation, Language and the Law, and Business Transactions. He has won the annual outstanding teacher award three times.

Professor DeLong has published articles in the Wisconsin Law Review, the University of Pennsylvania Law Review, the Indiana Law Review, The San Diego Law Review and the University of Denver Law Review. His areas of published scholarship include contract theory, promissory estoppel, restitution, blackmail, and perjury, as well as a modest body of legal humor.



Placid, Clear-Seeming Words: Some Realism About the New Formalism (with Particular Reference to Promissory Estoppel), 38 San Diego L. Rev. 13 (2001).

The New Requirement of Enforcement Reliance in Commercial Promissory Estoppel: Section 90 as Catch-22, 1997 Wis. L. Rev. 943 (1997).

An Agnostic's Bible, 20 Seattle U. L. Rev. 295 (1997) (reviewing Robert S. Summers, et al., Contract and Related Obligation: Theory, Doctrine, and Practice (3d ed. 1997)).

Jacques of All Trades: Derrida, Lacan, and the Commercial Lawyer, 45 J. Legal Educ. 131 (1995).

Blackmailers, Bribe Takers, and the Second Paradox, 141 U. Pa. L. Rev. 1663 (1993).

A Modern Proposal, 42 J. Legal Educ. 127 (1992).

':' An Appraisal, 41 J. Legal Educ. 483 (1991).

The Efficiency of Disgorgement as a Remedy for Breach of Contract, 22 Ind. L. Rev. 737 (1989).

Testimonial Consistency: The Hobgoblin of the Federal False Declaration Statute, 66 Denv. U. L. Rev. 135 (1989).