Granted Patent
Utility
US 5,344,231 · App. 08/003,844
System for the preparation of a fluid concentrate intended for medical use
Inventors:
Lennart Jonsson, Stefan Knutsson
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Jan 11, 1993
Inventors
Lennart Jonsson
Stefan Knutsson
Assignee (at issue)
Gambro AB
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.