Granted Patent
Utility
US 6,260,935 · App. 09/218,621
Unpaved road detection system
Inventors:
Yasuhiro Abe, Masaki Banno, Toshihisa Kato, Shinji Tsugawa, Koichi Kondo, Yasushi Kobayashi, Hiroyuki Matsubayashi
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Dec 22, 1998
Inventors
Yasuhiro Abe
Masaki Banno
Toshihisa Kato
Shinji Tsugawa
Koichi Kondo
Yasushi Kobayashi
Hiroyuki Matsubayashi
Assignee (at issue)
AISIN SEIKI KABUSHIKI KAISHA
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.