If you don't pay the annual fee, the patent right will be terminated and the application will be in vain.
The utility model patent is 600 per year in the first three years, 900 per year in the fourth and fifth years, 1200 per year in the sixth to eighth years, and 2000 per year in the ninth and tenth years.
If you don't pay the Chinese New Year fee after the application, you should pay the annual fee of 2013.4.10-2014.4.10 before April, 2065438.
You can still pay the fee within ten days. After this 10 day, they should send you a notice telling you that your patent right will expire.