How can an applicant restore the right of priority if the U.S. application is filed after the 12-month deadline?

An applicant can restore the right of priority if the U.S. application is filed after the 12-month deadline (or 6-month deadline for design applications) but within 2 months of the expiration of that period. This can be done through a petition process, provided the delay was unintentional.

According to MPEP 213.03: “As provided in 37 CFR 1.55(c), if the subsequent application has a filing date which is after the expiration of the twelve-month period (or six-month period in the case of a design application), but within two months from the expiration of the period, the right of priority in the subsequent application may be restored under PCT Rule 26bis.3 for an international application, or upon petition under 37 CFR 1.55(c), if the delay in filing the subsequent application within the period was unintentional.”

The petition to restore the right of priority must include:

• The priority claim identifying the prior foreign application
• The petition fee
• A statement that the delay in filing was unintentional

The USPTO may require additional information to establish that the delay was unintentional.

For more information on foreign priority, visit: foreign priority.

For more information on priority restoration, visit: priority restoration.

For more information on unintentional delay, visit: unintentional delay.