Three years after a family's escape, and six years after the escape of a member of the family, they were removed from the family and tax register, and became 絶貫 (a person without a birthplace).
逃走の戸は3年、戸口は6年が経過すると戸籍・計帳から除かれて絶貫（本貫を持たない者）となった。