https://www.uspto.gov/uspto-operating-status
Here is what the USPTO says:
While activities across much of the federal government ceased at 12:01 a.m. January 20, 2018, due to a lack of appropriated funding, the USPTO remains operational.
This is possible because the agency has access to prior year fee collections, which enables the USPTO to continue normal operations for a few weeks. Should the USPTO exhaust these funds before a government shutdown comes to an end, the agency would have to shut down at that time, although a very small staff would continue to work to accept new applications and maintain IT infrastructure, among other functions.
Further information regarding any adjustments to the USPTO’s operating status during a federal government shutdown will be posted on the USPTO website and delivered to the news media.




A year ago or so, the USPTO started a beta-test of its system in which docx files play an important role. In the best-test system, an applicant was permitted to file a patent application in docx format rather than PDF format. Likewise, the applicant had the opportunity to receive some documents from the USPTO in docx format in addition to PDF format. Our firm was among the beta-testers of this docx system.
It will be recalled (see