Granted Patent
Utility
US 6,086,340 · App. 09/309,984
Metering diaphragm pump having a front removable hydraulic refill valve
Inventors:
Phillip M. Edwards, Robert J. Meehan
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: May 11, 1999
Inventors
Phillip M. Edwards
Robert J. Meehan
Assignee (at issue)
MILTON ROY, 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.