Noting that trademark owners must be "afforded some latitude to assess both the impact of another's use of an allegedly infringing trademark as well as the wisdom of pursuing litigation on the issue"
Holding that maintenance of a suit by the losing union in an NLRB jurisdictional dispute to confirm a corresponding favorable arbitration award amounts to an unfair labor practice
Finding union's attempt to enforce an arbitration award that was inconsistent with a prior section 10(k) proceeding constituted an unfair labor practice
Finding union cannot assert contract claims in contravention of an existing 10(k) award and thereby frustrate the purpose of section 10(k); "a union cannot force an employer to choose between a Board section 10(k) award and a squarely contrary contract claim"