Granted Patent
Utility
US 4,385,996 · App. 06/317,802
Control of trihalomethanes in water treatment
Inventor:
Timothy McCarthy
Patented Case
View Patent ↗
Granted: May 31, 1983
Filed: Nov 3, 1981
Inventor
Timothy McCarthy
Assignee (at issue)
ALLIED CONSULTING, 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.