Granted Patent
Utility
US 6,676,650 · App. 09/400,800
Perfusion cannula, method and system
Inventors:
James A. Magovern, Wayne P. Griffin, Richard E. Davis
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Sep 22, 1999
Inventors
James A. Magovern
Wayne P. Griffin
Richard E. Davis
Assignee (at issue)
CardiacAssist, 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.