id,agency_id,docket_id,title,document_type,subtype,posted_date,posted_year,posted_month,comment_start_date,comment_end_date,last_modified,fr_doc_num,open_for_comment,withdrawn,object_id FDA-2014-E-1637-0004,FDA,FDA-2014-E-1637,Letter from the U.S. Patent and Trademark Office to FDA,Other,Letter(s),2015-09-09T04:00:00Z,2015,9,2015-09-09T04:00:00Z,,2015-09-09T18:25:42Z,,0,0,0900006481c6336e FDA-2014-E-1637-0003,FDA,FDA-2014-E-1637,Letter from FDA CDER to the U.S. Patent and Trademark Office,Other,Letter(s),2015-03-23T04:00:00Z,2015,3,2015-03-23T04:00:00Z,,2015-03-23T14:57:39Z,,0,0,0900006481a592dc