Granted Patent
Utility
US 5,964,694 · App. 08/881,884
Method and apparatus for cardiac blood flow assistance
Inventors:
Thorsten Siess, Helmut Reul
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Jun 24, 1997
Inventors
Thorsten Siess
Helmut Reul
Assignee (at issue)
Guidant Corporation
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.