Granted Patent
Utility
US 5,053,161 · App. 07/205,117
Composition for inhibiting scale in water systems
Inventor:
Sherman J. Sprague
Patented Case
View Patent ↗
Granted: Oct 1, 1991
Filed: Jun 10, 1988
Inventor
Sherman J. Sprague
Assignee (at issue)
The Mogul 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.