1. Expiration and termination: the invention patent right shall be maintained for 20 years from the date of application, and the utility model or design patent right shall be maintained for 10 years from the date of application, and shall be terminated according to law.
2. Termination without payment: The Patent Office will issue a notice of payment, informing the applicant that after paying the annual fee and late fee, if the applicant still fails to pay or fails to pay the annual fee and late fee in full, the patent right will be terminated from the date of expiration of the previous year.
The termination of the patent right mainly includes the following situations:
(1) failed to pay the annual fee as required.
(2) The patentee waives the patent right in writing.
(3) When the patent right expires, the patent right will be terminated.
If the annual patent fee has not been paid or the annual patent fee and late payment fee have been paid in full, a notice of patent termination shall be issued within two months from the date of expiration of the annual patent fee, which shall not be earlier than 1 month, and the patentee shall be notified. Where the patentee fails to start the recovery procedure or the recovery is not approved, it shall register and announce it in the patent register and patent announcement respectively four months after the termination notice is issued. After that, the patent application file is stored in the invalid file database. The expiration date of the patent right is the expiration date of the previous year.