Granted Patent
Utility
US 5,947,689 · App. 08/852,583
Automated, quantitative, system for filtration of liquids having a pump controller
Inventor:
Karl G. Schick
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: May 7, 1997
Inventor
Karl G. Schick
Assignee (at issue)
Scilog, 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.