District Court, D. Colorado August 24, 1972, Civ. A. No. 0-3282 (Curtis, Inc. v. United States)

MEMORANDUM OPINION

WINNER, District Judge.

Plaintiff seeks to enjoin enforcement of an order of the Interstate Commerce Commission. Jurisdiction rests on 28 U.S.C. § 1336, and the case has been heard by a three-judge court pursuant to 28 U.S.C. § 2325. We are called upon to decide whether Curtis can collaterally attack a so-called “Keystone restriction.