Formality examination of Vietnam patent

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A patent application filed with the NOIP shall be subject to formal examination for evaluating its validity.

The time limit for formality examination of an application is one (1) month from the filing date.

In the course of formality examination, if the applicant corrects or supplements documents on his/her own initiative or upon the request of the NOIP, the time limit for formality examination may be prolonged for a period of time during which documents are corrected or supplemented.