Users may review and check their electronic submissions, including their attached PDF files, before submitting the documents to the USPTO. After submitting the documents viaEFS-Web, the system will display a page that states the USPTO has received the user’s submission and that provides an application number. Users of EFS-Web will receive an Electronic Acknowledgement Receipt (which can be printed or saved) of a successful submission received by the USPTO on their device, usually within a few minutes.