Granted Patent
Utility
US 4,470,210 · App. 06/497,803
Mounting for excavating implement and method
Inventor:
Frederick C. Hahn
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: May 25, 1983
Inventor
Frederick C. Hahn
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.