Notwithstanding any contrary provisions of its charter or bylaws:
(1) Any Connecticut bank may require not more than three months' notice for the withdrawal of savings deposits or time deposits from such bank; provided, during the period when any such bank is operating with such notice requirement in force, it may, nevertheless, in its discretion, pay such amount or amounts to any depositor weekly or at other intervals as it deems prudent; and
(2) In every case in which a notice of intention to withdraw moneys has been filed by a depositor, such notice is void and of no effect upon the actual withdrawal of the amount demanded and in any event shall be void one month after the expiration of the period specified therein.