Granted Patent
Utility
US 4,348,855 · App. 06/189,238
Crop damage responsive control of rotor speed
Inventors:
Richard A. DePauw, Richard W. Staiert
Patented Case
View Patent ↗
Granted: Sep 14, 1982
Filed: Sep 22, 1980
Inventors
Richard A. DePauw
Richard W. Staiert
Assignee (at issue)
International Harvester Company
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.