Granted Patent
Utility
US 6,466,866 · App. 09/914,271
Route guidance device
Inventor:
Hiroyuki Sato
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: Dec 3, 2001
Inventor
Hiroyuki Sato
Assignee (at issue)
Xanavi Informatics Corporation
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.