Granted Patent
Utility
US 4,352,681 · App. 06/288,706
Electrostatically augmented cyclone apparatus
Inventor:
Peter W. Dietz
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Jul 30, 1981
Inventor
Peter W. Dietz
Assignee (at issue)
General Electric Company
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.