Granted Patent
Utility
US 5,674,404 · App. 08/558,213
Filter integrity test method for dialysis machines
Inventors:
Rodney S. Kenley, Dawn Matthews, Douglas L. Wilkerson, Dennis M. Treu, Frederick H. Peter, Jr., Tom L. Brose, Thomas M. Feldsein
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Apr 30, 1996
Inventors
Rodney S. Kenley
Dawn Matthews
Douglas L. Wilkerson
Dennis M. Treu
Frederick H. Peter, Jr.
Tom L. Brose
Thomas M. Feldsein
Assignee (at issue)
AKsys GmbH
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.