Granted Patent
Utility
US 6,118,645 · App. 08/418,267
Self-balancing bipolar air ionizer
Inventor:
Leslie W. Partridge
Patented Case
View Patent ↗
Granted: Sep 12, 2000
Filed: Apr 6, 1995
Inventor
Leslie W. Partridge
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.