Granted Patent
Utility
US 6,200,469 · App. 09/103,075
System for removing pollutants from water
Inventor:
Scott Wallace
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Jun 23, 1998
Inventor
Scott Wallace
Assignee (at issue)
North American Wetland Engineering, 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.