Granted Patent
Utility
US 6,018,895 · App. 08/760,435
Valve stack in a mini-excavator directing fluid under pressure from multiple pumps to actuable elements
Inventors:
Gerald J. Duppong, Knute K. Brock, Thomas M. Sagaser
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Dec 4, 1996
Inventors
Gerald J. Duppong
Knute K. Brock
Thomas M. Sagaser
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.