N.Y. Abandoned Property Law § 300
1. The following unclaimed property held or owing by banking organizations shall be deemed abandoned property:
(a) Any amounts due on deposits or any amounts to which a shareholder of a savings and loan association or a credit union is entitled, held or owing by a banking organization, which shall have remained unclaimed for three years by the person or persons appearing to be entitled thereto, including any interest or dividends credited thereon, excepting
(b) Any amounts, together with all accumulations of interest or other increment thereon, held or owing by a banking organization for the payment of an interest in a bond and mortgage apportioned or transferred by it pursuant to subdivision seven of former section one hundred eighty-eight of the banking law as it existed prior to July first, nineteen hundred thirty-seven, which shall have remained unclaimed by the person or persons appearing to be entitled thereto for three years after the full and final liquidation of such mortgage, excepting
(c) Any amount held or owing by a banking organization for the payment of a negotiable instrument under article three of the uniform commercial code or a certified check whether negotiable or not, on which such organization is directly liable, which instrument shall have been outstanding for more than three years from the date it was payable or from the date of its issuance, if payable on demand; provided, however, the provisions of this paragraph shall not apply