Annuity contracts, pure endowment contracts; grace period.

In a fixed-dollar annuity, variable annuity, or pure endowment contract, other than a reversionary, survivorship, or group annuity, the contract shall provide that there shall be a period of grace of 1 month but not less than 30 days, within which any stipulated payment to the insurer falling due after the first may be made, subject, at the option of the insurer, to an interest charge thereon at a rate to be specified in the contract but not exceeding 6 percent per year for the number of days of grace elapsing before such payment, during which period of grace the contract shall continue in full force. If a claim arises under the contract on account of death prior to expiration of the period of grace before the overdue payment to the insurer or the deferred payments of the current contract year, if any, are paid, the amount of such payments, with interest on any overdue payments, may be deducted from any amount payable under the contract in settlement.