After the Patent Office receives the documents, it enters the patent application process. It will take about one to two months to review whether the patent application documents are qualified. After passing the patent application documents, the Patent Office will issue a patent application acceptance notice, which states: The payment deadline and payment amount.
Patent Law Implementing Rules
Article 95 The applicant shall pay the application fee within 2 months from the date of application or within 15 days from the date of receipt of the acceptance notice. Publication printing fees and necessary application surcharges; if they are not paid upon expiration or are not paid in full, the application will be deemed withdrawn.
If the applicant claims priority, he shall pay the priority claim fee at the same time as the application fee; if the application fee is not paid upon expiration or is not paid in full, it shall be deemed that priority has not been claimed.