Granted Patent
Utility
US 6,791,815 · App. 09/698,707
Dynamic air ionizer and method
Inventor:
Martin Graham
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Oct 27, 2000
Inventor
Martin Graham
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.