Granted Patent
Utility
US 6,354,986 · App. 09/504,722
Reverse-flow chamber purging during centrifugal separation
Inventors:
Dennis J. Hlavinka, Thomas J. Felt
Patented Case
View Patent ↗
Granted: Mar 12, 2002
Filed: Feb 16, 2000
Inventors
Dennis J. Hlavinka
Thomas J. Felt
Assignee (at issue)
Gambro, 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.