Granted Patent
Utility
US 4,222,452 · App. 06/027,185
Power steering mechanism for cotton pickers
Inventors:
Robert M. Fachini, William D. Lester
Patented Case
View Patent ↗
Granted: Sep 16, 1980
Filed: Apr 4, 1979
Inventors
Robert M. Fachini
William D. Lester
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.