How long is the recovery period of unpaid patent rights?

Legal analysis: if the patent right is terminated without paying the annual patent fee on time, an application for restoration shall be filed within two months after receiving the notice. In other words, the patent right recovery period is two months after receiving the patent termination notice.

Legal basis: Article 44 of the Patent Law of People's Republic of China (PRC) is under any of the following circumstances, and the patent right shall be terminated before the expiration of the time limit:

(a) failing to pay the annual fee in accordance with the provisions;

(2) The patentee waives his patent right in writing. Where the patent right is terminated before the expiration of the time limit, it shall be registered and announced by the patent administration department of the State Council.