Granted Patent
Utility
US 5,678,237 · App. 08/668,906
In-situ vitrification of waste materials
Inventors:
James R. Powell, Morris Reich, Robert Barletta
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Jun 24, 1996
Inventors
James R. Powell
Morris Reich
Robert Barletta
Assignee (at issue)
Associated Universities, 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.