Granted Patent
Utility
US 4,236,900 · App. 05/891,826
Electrostatic precipitator apparatus having an improved ion generating means
Inventors:
Richard A. Fitch, James E. Drummond, Alfred A. Mondelli
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Mar 30, 1978
Inventors
Richard A. Fitch
James E. Drummond
Alfred A. Mondelli
Assignee (at issue)
Maxwell Laboratories, 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.