N.J. Stat. § 45:22-28: Surplus belongs to pawnbroker after five years

If a surplus be not paid or claimed within five years from the date on which it accrued, it shall revert to the pawnbroker for his own use and benefit. Interest on unpaid surplus, at the rate of six per cent per annum, shall accrue only after the pawnbroker's refusal to pay the same, upon lawful demand thereof.