Article 5 For any document sent by mail to the administrative department for patent under the State Council, the date of mailing indicated by the postmark shall be regarded as the application date.
Article 5 For any document sent by mail to the administrative department for patent under the State Council, the date of mailing indicated by the postmark shall be regarded as the application date.
邮戳日不清晰的，除当事人能够提出证明外，以国务院专利行政部门收到日为递交日。