Granted Patent
Utility
US 4,398,608 · App. 06/264,363
Rotary hoe
Inventor:
Charles Boetto
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: May 18, 1981
Inventor
Charles Boetto
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.