Before the expiration of the six months mentioned in section 391 of this title, a copy of the notice as published, with the proper proof of publication, shall be filed with the court. A claim not presented within six months after the first publication of the notice is not barred, but it shall not be paid until the claims presented within that period have been satisfied, and if the claim is not then due, or if contingent, it shall nevertheless be presented as any other claim. Until the administration has been completed, a claim against the estate not barred by the statute of limitations may be presented, allowed, and paid out of any assets then in the hands of the executor or administrator not otherwise appropriated or liable.