Granted Patent
Utility
US 4,827,371 · App. 07/176,845
Method and apparatus for ionizing gas with point of use ion flow delivery
Inventor:
Michael G. Yost
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Apr 4, 1988
Inventor
Michael G. Yost
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.