Granted Patent
Utility
US 4,791,738 · App. 07/065,052
Dragline bucket
Inventor:
Terry L. Briscoe
Patented Case
View Patent ↗
Granted: Dec 20, 1988
Filed: Jun 22, 1987
Inventor
Terry L. Briscoe
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.