Granted Patent
Utility
US 5,595,650 · App. 08/396,045
Device and a method for the separation of fluid substances
Inventor:
Andreas Manz
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Feb 28, 1995
Inventor
Andreas Manz
Assignee (at issue)
Ciba-Geigy
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.