Granted Patent
Utility
US 5,921,913 · App. 08/881,885
Statorless intravascular microaxial flow pump
Inventor:
Thorsten Siess
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Jun 24, 1997
Inventor
Thorsten Siess
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.