Granted Patent
Utility
US 6,540,653 · App. 09/776,378
Unitary spiral vane centrifuge module
Inventors:
Peter K. Herman, Richard Jensen
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Feb 2, 2001
Inventors
Peter K. Herman
Richard Jensen
Assignee (at issue)
Fleetguard, 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.