Granted Patent
Utility
US 5,961,736 · App. 08/861,972
Method for removal of contaminants from surfaces
Inventors:
Ronald E. Borah, Michael W. Bonem
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: May 22, 1997
Inventors
Ronald E. Borah
Michael W. Bonem
Assignee (at issue)
Active Environmental 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.