• Patent Grant Maintenance Fee Events (September 1, 1981 - Present)

    Contains recorded maintenance fee events for patents granted from September 1, 1981 to Present. Each new weekly file is cumulative. The file format is ASCII. This product includes a MaintFeeEvents.zip file for each week (cumulative). Within each weekly zip file is: MaintFeeEvents_yyyymmdd.txt where "yyyymmdd" is a Monday. Approx. 82 MB.

    Data and Resources

    About this Dataset

    Resource Type Dataset
    Metadata Date 07/15/2013
    Metadata Created Date Jul 20, 2013
    Metadata Updated Date Jan 12, 2014
    Reference Date(s) 09/01/1981 - Present
    Responsible Party Unknown
    Contact Email chris.leithiser@uspto.gov
    Access Level public
    Data Dictionary http://patents.reedtech.com/downloads/PatentMaintFeeEvents/1981-present/MaintFeeEventsFileDocumentation.doc
    Data Quality TRUE
    Frequency Of Update Weekly (Tuesdays)
    Issued 12/01/2009
    Metadata Source dms
    References http://patents.reedtech.com/downloads/PatentMaintFeeEvents/1981-present/MaintFeeEventsFileDocumentation.doc
    Spatial Text National and international
    Theme Section 15. Business Enterprise

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