If the patentee fails to pay the relevant fees on the expiration date of the overdue fine, the State Bureau of Justice will issue a notice of termination of the patent right to the obligee. The patent right shall be terminated as of the date of notification.
Landlord's patent application should also be protected by high-value technology. I worked hard to apply for a patent, but I lost my right because I didn't pay the annual fee in time. Then all the time and patent fees invested in applying for a patent before will be wasted. Now that the patent application has passed, it is better to pay the annual fee on time.