Granted Patent
Utility
US 5,043,074 · App. 07/531,764
Device and method for measuring the ultrafiltration in an artificial kidney
Inventor:
Jacques Chevallet
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Jun 1, 1990
Inventor
Jacques Chevallet
Assignee (at issue)
Hospal Industrie
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.