Granted Patent
Utility
US 6,041,818 · App. 09/139,585
Valve assembly
Inventors:
Christopher E. Schadewald, Michael P. Wells
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Aug 25, 1998
Inventors
Christopher E. Schadewald
Michael P. Wells
Assignee (at issue)
Aeroquip Corporation
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.