Granted Patent
Utility
US 5,262,065 · App. 07/718,195
Apparatus and method for decontaminating aquifers
Inventor:
Kevin Hansen
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Jun 20, 1991
Inventor
Kevin Hansen
Assignee (at issue)
Roy F. Weston, 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.