Granted Patent
Utility
US 5,873,227 · App. 08/964,435
Combine harvester rotor speed control and control method
Inventor:
Robert J. Arner
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Nov 4, 1997
Inventor
Robert J. Arner
Assignee (at issue)
AGCO Corporation
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.