=== HTTP code : 200 ===

Response headers
================
HTTP/1.0 200 Script results follow
Server: NetAnswer Server 1.0
Content-Type: text/html

Request headers
================
GET /netacgi/nph-Parser?Sect1=PTO2&amp;Sect2=HITOFF&amp;p=1&amp;u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&amp;r=1&amp;f=G&amp;l=50&amp;co1=AND&amp;d=PTXT&amp;s1=9,207,173&amp;OS=9,207,173&amp;RS=9,207,173 HTTP/1.1
Host: patft.uspto.gov
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Accept: */*
Referer: https://bme.fiu.edu
Connection: close
Range: bytes=0-2048


Link is valid.