404. That’s an error.

The requested URL /translate_c?act=url&depth=1&hl=it&ie=UTF8&prev=_t&rurl=translate.google.it&sl=en&tl=it&twu=1&u=http://patft.uspto.gov/netacgi/nph-Parser%3FSect1%3DPTO1%26Sect2%3DHITOFF%26d%3DPALL%26p%3D1%26u%3D%252Fnetahtml%252FPTO%252Fsrchnum.htm%26r%3D1%26f%3DG%26l%3D50%26s1%3D6,091,994.PN.%26OS%3DPN/6,091,994%26RS%3DPN/6,091,994&usg=ALkJrhiHG72tgeJeodoeAnD49u1DnZgi_g was not found on this server. That’s all we know.