281 N.W.2d 209 FRED C. KING, APPELLANT, v. SKY HARBOR AIR SERVICE, INC., A NEBRASKA CORPORATION, APPELLEE. No. 42223.Supreme Court of Nebraska. Filed July 10, 1979. Contracts: Damages: Interest. In an action for a liquidated sum which represents a downpayment on a contract voided or terminated by mutual agreement, the amount claimed does not become […]