Granted Patent
Utility
US 6,447,539 · App. 08/929,076
Method and apparatus for treating ischemic heart disease by providing transvenous myocardial perfusion
Inventors:
James A. Nelson, Ascher Shmulewitz, John Burton
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Sep 15, 1997
Inventors
James A. Nelson
Ascher Shmulewitz
John Burton
Assignee (at issue)
TransVascular, 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.