Granted Patent
Utility
US 6,130,815 · App. 09/311,775
Apparatus and method for monitoring of air ionization
Inventors:
Ira J. Pitel, Mark Blitshteyn
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: May 13, 1999
Inventors
Ira J. Pitel
Mark Blitshteyn
Assignee (at issue)
Ion Systems, 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.