USPTO Data Sets



Contact Us


Reed Tech IP Services
7 Walnut Grove Drive
Horsham, PA 19044


Our Websites




Contains recorded maintenance fee events for patents granted from September 1, 1981 to present. Each new weekly file is cumulative. There is also a weekly description file of the fee event codes. The file format is ASCII.
Documentation:  https://eipweb.uspto.gov/MaintFeeEvents/MaintFeeEventsFileDocumentation.doc




1981-present
File NameFile Size (bytes)Posting Date
MaintFeeEventsFileDocumentation.doc81,40802/12/2014
MaintFeeEventsDesc_20140210.txt8,58002/12/2014
MaintFeeEvents.zip89,495,38711/18/2014