Granted Patent
Utility
US 6,124,563 · App. 09/046,610
Pulsed electrothermal powder spray
Inventors:
F. Douglas Witherspoon, Dennis W. Massey
Patented Case
View Patent ↗
Granted: Sep 26, 2000
Filed: Mar 24, 1998
Inventors
F. Douglas Witherspoon
Dennis W. Massey
Assignee (at issue)
Utron 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.