Conn. Gen. Stat. § 42a-2A-729: Cure.

(a) If a lessee rightfully rejects goods or a tender of delivery under section 42a-2A-725 or justifiably revokes an acceptance under section 42a-2A-733 and the agreed time for performance has not expired, the lessor or supplier, upon seasonable notice to the buyer and at the lessor's or supplier's own expense, may cure any default by making a conforming tender of delivery within the agreed time. The lessor is obligated to compensate the lessee for all of the lessee's reasonable and necessary expenses caused by the nonconforming tender and subsequent cure.

(b) If a lessee rightfully rejects goods or a tender of delivery under section 42a-2A-725 or justifiably revokes acceptance under section 42a-2A-733 and the agreed time for performance has expired, the lessor or supplier, upon seasonable notice to the lessee and at the lessor's or supplier's own expense, may cure a default, if the cure is appropriate and timely under the circumstances, by making a tender of conforming goods. The lessor or supplier is obligated to compensate the lessee for all of the lessee's reasonable and necessary expenses caused by the nonconforming tender and subsequent cure.