Granted Patent
Utility
US 5,660,802 · App. 08/439,214
Water purifier
Inventors:
David Archer, Diane M. Brancazio, Susannah Gardner, Charles F. Heinig, Matthew D. Hern, Francis M. Lubrano, David A. Snow, David M. Sykes
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: May 11, 1995
Inventors
David Archer
Diane M. Brancazio
Susannah Gardner
Charles F. Heinig
Matthew D. Hern
Francis M. Lubrano
David A. Snow
David M. Sykes
Assignee (at issue)
Fountainhead Technologies, 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.