The consequences of not paying the annual patent fee are

You can not pay the fee, but you need to bear the consequences of not paying the fee: it is regarded as giving up this patent application.

After the patent application is approved, you will receive the authorization notice and the registration notice, so you need to pay the relevant registration fee, annual fee and stamp duty to obtain the patent certificate, otherwise China National Intellectual Property Administration will issue a notice of abandonment.

In addition, after successfully obtaining the patent certificate, it is necessary to pay the annual patent fee, otherwise the patent right will be terminated, that is, China National Intellectual Property Administration will issue a notice of patent termination, and it is the obligation of each patentee to pay the annual patent fee. Failure to pay the fee means bearing the legal consequences of giving up the patent.