What is the significance of the “Commencement of National Stage” date in U.S. national stage applications?

The “Commencement of National Stage” date is significant in U.S. national stage applications as it marks the beginning of the national phase processing. According to MPEP 1893.03(b):

“The “Commencement of National Stage” date appearing on the Form PCT/DO/EO/903 is the date on which the 30-month time period expires.”

This date is important because:

• It signifies the deadline for meeting the requirements of 35 U.S.C. 371(c)
• It determines when the USPTO will begin processing the application as a national stage application
• It can affect the calculation of certain time periods and deadlines in the national phase

Applicants should be aware of this date to ensure timely submission of required documents and fees for successful entry into the national stage.

To learn more:

• Commencement of National Stage
• Form PCT/DO/EO/903
• 30-month time period
• national phase processing