Granted Patent
Utility
US 4,372,821 · App. 06/297,981
Emission control apparatus
Inventor:
Thomas V. Reinauer
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Aug 31, 1981
Inventor
Thomas V. Reinauer
Assignee (at issue)
United States Filter Corporation
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.