2.2. 1 year fee
The annual fee for the year when the patent right is granted shall be paid at the same time as the registration formalities, and the annual fee for the following year shall be paid before the expiration of the previous year. The expiration date of the payment period is the corresponding date of the application date of the current year.
2.2. 1. 1 year
The patent year is counted from the date of application, which has nothing to do with the priority date and authorization date, and is not necessarily related to the natural year. For example, the filing date of a patent application is 1 June 1999 1 day, the first year of patent application is 1 June 19991day to May 3, 2000/day, and the second year is1day to 20/day.
You mean the payment one month before and one month after the application date. Of course.
Because it used to be paid one month before the application date, it is now relaxed to pay before the application date of that year.
If it is overdue, it will be less than one month, and there is no need to pay late fees. /kloc-5% will be paid after 0/month. But this is not recommended.