After an invention patent application is submitted, it can be actively modified at the same time as the request for substantive examination or within 3 months after entering the substantive examination stage. However, such modifications cannot exceed the scope of the originally submitted documents, otherwise the patent The bureau does not accept it.
If you have submitted a Chinese patent application, you can submit a PCT application to the PCT Office of the China Patent Office within 12 months from the filing date. You can submit either Chinese or English text.
In addition, you need to submit PCT application fees and other official fees, which are about 12,000 yuan. If the individual request fee is reduced, it will be reduced to about 4,000 yuan if approved.
After the PCT application is accepted, it enters the first stage of PCT, that is, the international stage. This stage is mainly a legal process without substantive examination and authorization procedures.
After the international publication of pct and before the deadline (usually 30 months from the date of Chinese patent application), the second stage of pct, that is, the national stage, can be entered at the request of the applicant. The applicant can choose the need The country or region you enter, because if you want to obtain patent protection abroad, you must enter the country to apply for a patent and review it to obtain patent authorization. The laws and fees vary from country to country, but they are usually much more expensive than in China, and translation fees are also involved, so you must be mentally prepared.