How are models and exhibits handled in patent applications?

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.

Models and exhibits received by the U.S. Patent and Trademark Office are handled as follows:

• They are taken to the Technology Center (TC) assigned to the related application for examination.
• Their receipt must be properly recorded on an artifact sheet.
• A label with the application number, filing date, and attorney’s information should be attached for clear identification.

As stated in the MPEP, The Office may return the model, exhibit, or specimen, at any time once it is no longer necessary for the conduct of business before the Office and return of the model or exhibit is appropriate. (MPEP 608.03(a))