Granted Patent
Utility
US 6,798,637 · App. 10/294,047
Dynamic air ionizer and method
Inventor:
Martin Graham
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Nov 13, 2002
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.