Granted Patent
Utility
US 6,322,104 · App. 09/490,929
Excavator frame and method of assembly
Inventors:
Gerald J. Duppong, Stacey A. Zander, Warren M. Schatz, Jay J. Bleth
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Jan 25, 2000
Inventors
Gerald J. Duppong
Stacey A. Zander
Warren M. Schatz
Jay J. Bleth
Assignee (at issue)
CLARK EQUIPMENT 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.