Granted Patent
Utility
US 4,303,418 · App. 06/107,298
Discharge electrode in precipitator
Inventor:
Everett L. Coe, Jr.
Patented Case
View Patent ↗
Granted: Dec 1, 1981
Filed: Dec 26, 1979
Inventor
Everett L. Coe, Jr.
Assignee (at issue)
Joy Manufacturing 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.