The installments due upon subscription shall be paid at the bank; and the bank shall record such payments in a special account to be opened in the name of the company. Subscription shall remain open for a period of not less than ten days and not exceeding three months.

Subscription shall not close — in case of covering subscription at any period — before the lapse of five days from the date of publication of a notice that subscription for shares has been fully completed, provided that the minimum period of subscription has lapsed.