Granted Patent
Utility
US 4,932,478 · App. 07/235,110
Tooth point for earth working
Inventor:
Larren F. Jones
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Aug 22, 1988
Inventor
Larren F. Jones
Assignee (at issue)
ESCO GROUP LLC
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.