Granted Patent
Utility
US 4,447,221 · App. 06/388,770
Continuous flow centrifuge assembly
Inventor:
Alfred P. Mulzet
Patented Case
View Patent ↗
Granted: May 8, 1984
Filed: Jun 15, 1982
Inventor
Alfred P. Mulzet
Assignee (at issue)
International Business Machines Corporation
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.