Granted Patent
Utility
US 5,156,739 · App. 07/771,384
System for purifying and degasifying water by reverse osmosis
Inventors:
Bruce M. Dawson, Adam Foley, Gary A. O'Neill, Frank Firicano
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Sep 30, 1991
Inventors
Bruce M. Dawson
Adam Foley
Gary A. O'Neill
Frank Firicano
Assignee (at issue)
Millipore 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.