Granted Patent
Utility
US 6,146,466 · App. 08/816,954
Use of electrostatic bias to clean non-electrostatically sensitive components with a carbon dioxide spray
Inventor:
Charles W. Bowers
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Feb 14, 1997
Inventor
Charles W. Bowers
Assignee (at issue)
Eco-Snow 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.