Granted Patent
Utility
US 4,907,653 · App. 07/036,937
Implement control system
Inventors:
Regis Bellanger, William J. Graaskamp
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Apr 10, 1987
Inventors
Regis Bellanger
William J. Graaskamp
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.