Granted Patent
Utility
US 4,639,718 · App. 06/705,179
Boiler blowdown monitoring system and process for practicing same
Inventor:
Kenneth E. Gasper
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Feb 25, 1985
Inventor
Kenneth E. Gasper
Assignee (at issue)
Olin 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.