Granted Patent
Utility
US 6,186,972 · App. 09/208,807
Methods 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: Feb 13, 2001
Filed: Dec 9, 1998
Inventors
James A. Nelson
Ascher Shmulewitz
John Burton
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.