Granted Patent
Utility
US 6,671,683 · App. 09/892,700
Apparatus for retrieving similar documents and apparatus for extracting relevant keywords
Inventor:
Yuji Kanno
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Jun 28, 2001
Inventor
Yuji Kanno
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.