Granted Patent
Utility
US 5,992,243 · App. 08/781,984
Four-wheel drive transfer case with torque sensing
Inventor:
Robert Leeper
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Dec 21, 1996
Inventor
Robert Leeper
Assignee (at issue)
DANA LIMITED
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.