Granted Patent
Utility
US 6,817,278 · App. 10/277,763
Piston assembly for hydraulic cylinder
Inventors:
Matthew J. Hennemann, Roger D. Mickelson, Philip A. Iannarelli
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Oct 22, 2002
Inventors
Matthew J. Hennemann
Roger D. Mickelson
Philip A. Iannarelli
Assignee (at issue)
CNH AMERICA 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.