Granted Patent
Utility
US 6,358,895 · App. 08/952,764
Fluid treatment process
Inventor:
William Phillips
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Sep 16, 1997
Inventor
William Phillips
Assignee (at issue)
PABU Services, Inc.
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.