To have the validity of his/her invention protection title maintained,a protection title holder shall pay a validity maintenance fee within six months before the expiration of the validity term. The payment of the validity maintenance fee may be delayed for no more than six months after the expiration of the current validity term but the protection title holder shall pay the maintenance fee plus 10% for each month of delayed payment.
On April 14, 2024, the Ministry of Labor - War Invalids and Social Affairs issued Notice No. 1570/TB-BLDTBXH on the proposal to exchange working days