Granted Patent
Utility
US 6,318,167 · App. 09/305,267
Volumetric test stand cylinder monitor/controller
Inventor:
William R. Power
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: May 4, 1999
Inventor
William R. Power
Assignee (at issue)
Parker-Hannifin 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.