Granted Patent
Utility
US 5,249,481 · App. 07/842,377
Planetary gear units
Inventor:
Jean J. Lasoen
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Apr 1, 1992
Inventor
Jean J. Lasoen
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.