First Office Action Estimator

In fiscal year 2021, the USPTO moved to a new methodology for assigning patent applications to patent examiners based on Cooperative Patent Classification (CPC). The First Office Action Estimator has been updated to account for this new methodology. You can estimate how long it will take for a first office action to be issued on a specific patent application by entering its serial number.

Enter an application number as '99/999,999' or '99999999'

Alternatively, if you have your application serial number, you can also log in to Private PAIR or Patent Center to check estimates on how long it will take for a first office action to be issued in that application.

Note: the estimates provided by this first office action estimator are not guaranteed by the United States Patent and Trademark Office (USPTO).

First Office Action

An Office action is a document written by a patent examiner in the course of examination of a patent application. The Office action may cite prior art and gives reasons why the examiner has allowed (approved) the applicant's claims, and/or rejected the claims. A first Office action on the merits (FAOM) is typically the first substantive examination of the application.