Granted Patent
Utility
US 4,754,664 · App. 06/934,246
Four range hydromechanical transmission
Inventor:
Wesley M. Dick
Patented Case
View Patent ↗
Granted: Jul 5, 1988
Filed: Nov 20, 1986
Inventor
Wesley M. Dick
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.