United National Insurance v. Frontier Insurance

*681OPINION

By the Court, Gibbons, J.:

This case arises out of the collapse of the Las Vegas Hilton marquee sign on July 18, 1994. The district court granted summary judgment against appellants United National Insurance Company and Assicurazioni Generali S.P.A., holding that they owed defense and settlement expenses to respondents Frontier Insurance Company, Inc., and Uriah Enterprises, Inc. On appeal, we are asked to determine when the duty to defend and the duty to indemnify an insured arise under a comprehensive general liability (CGL) insurance policy covering “occurrences” during a policy…