Granted Patent
Utility
US 6,189,643 · App. 09/174,553
Differential limiting control apparatus for four wheel drive vehicle
Inventors:
Akira Takahashi, Yutaka Hiwatashi
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Oct 19, 1998
Inventors
Akira Takahashi
Yutaka Hiwatashi
Assignee (at issue)
Fuji Jukogyo 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.