The United States Patent and Trademark Office (USPTO) considers the effects of coronavirus to be an "extraordinary situation" within the meaning of 37 CFR 1.183 and 37 CFR 2.146 for affected patent and trademark applicants, patentees, reexamination parties, and trademark owners. Therefore, the USPTO is waiving petition fees in certain situations for customers impacted by the coronavirus. This notice does not grant waivers or extensions of dates or requirements set by statute.
 
Out of an abundance of caution for the health and safety of the public and USPTO employees, all USPTO offices will be closed to the public beginning Monday, March 16, 2020 until further notice. USPTO offices will remain open for employees, contractors, and those with access badges.  Unless otherwise notified, USPTO operations will continue without interruption. Patent and trademark application deadlines and other deadlines are not extended.
 
Links for reference:
https://www.uspto.gov/sites/default/files/documents/coronavirus_relief_ognotice_03162020.pdf?utm_campaign=subscriptioncenter&utm_content=&utm_medium=email&utm_name=&utm_source=govdelivery&utm_term=