681.21  Claims not due.
  Any creditor may claim debts to become due, as well as debts due, but on debts not due a reasonable rebate shall be made when the same are not drawing interest.
[R60, §1837; C73, §2126; C97, §3083; C24, 27, 31, 35, 39, §12740; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §681.21]