Granted Patent
Utility
US 5,908,407 · App. 08/900,967
Retroperfusion catheter apparatus and method
Inventors:
John G. Frazee, David Cornett, Scott M. Evans
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Jul 25, 1997
Inventors
John G. Frazee
David Cornett
Scott M. Evans
Assignee (at issue)
Neuroperfusion, 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.