1. directly submit the fee waiver request, and indicate in the request that "the applicant is a student at school and has no fixed income." Yes, no supporting documents are needed. The disadvantage is that the application fee cannot be deferred and must be paid according to the amount in the original acceptance notice, but the subsequent fees can be deferred (for example, the annual fee for three years after authorization is deferred by 85%).
2. Re-apply for a patent and submit a request for cost reduction. Disadvantages: The original application will be regarded as withdrawn, and the filing date of the patent will be calculated according to the new application.
3. Re-apply for a patent, claim the priority of the original application, and submit a request to reduce the cost.