Granted Patent
Utility
US 5,527,450 · App. 08/309,426
Water conductivity monitor for a water purification system
Inventor:
Bruce D. Burrows
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Sep 20, 1994
Inventor
Bruce D. Burrows
Assignee (at issue)
Hydro Tech 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.