Granted Patent
Utility
US 4,905,804 · App. 07/102,463
Control levers
Inventor:
Patrick Lefevre
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Sep 29, 1987
Inventor
Patrick Lefevre
Assignee (at issue)
Massey-Ferguson Services, N.V.
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.