If any foreign priority claims are being added after the time period set forth in 37 CFR 1.55 (e.g., after the later of four months from the actual filing date of the instant application or sixteen months from the filing date of the application for which foreign priority is being claimed), a petition to accept an unintentionally delayed benefit claim in compliance with 37 CFR 1.55 (including the petition fee) must also be submitted. See 37 CFR 1.55(e) for the petition requirements.
For any foreign priority claims that are being deleted, please ensure that deletion of the foreign priority claim(s) is actually desired. A deletion of a priority claim may be considered as a showing that the applicant is intentionally waiving the priority claim to the prior foreign application in the instant application. If applicant later files a petition to accept an unintentionally delayed priority claim to add the priority claim that was previously deleted, the Office may refuse to accept such priority claim because the delay was not unintentional.
For more information on foreign priority claims, see MPEP §§ 213-216.