What is the impact of a terminal disclaimer on an abandoned application?

Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-10

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

A terminal disclaimer can have significant implications for an abandoned application. The MPEP 711.02(b) provides guidance on this matter:

The mere existence of a recorded terminal disclaimer filed to obviate a double patenting rejection does not preclude an application from becoming abandoned for failure to reply to an Office action. The establishment of the terminal disclaimer creates only a formal relationship between applications or patents; it does not revive an abandoned application.

Key points to understand:

  • A terminal disclaimer alone does not prevent abandonment
  • It does not automatically revive an abandoned application
  • Applicants must still respond to Office actions to avoid abandonment
  • If an application becomes abandoned, a proper petition for revival is necessary, regardless of any terminal disclaimer
Tags: abandoned application, Double Patenting, revival, Terminal Disclaimer