Is there a surcharge for late filing of a certified copy of the priority document?
No, there is not any surcharge associated with late filing of a certified copy of each priority document(s) with the United States Patent and Trademark Office. However, if a certified copy of any claimed priority document(s) is not filed prior to the time that the issue fee is paid, then it will be necessary to Petition the United States Patent and Trademark Office for late entry of the same.
