Granted Patent
Utility
US 6,428,464 · App. 09/289,231
Implantable heart assist system
Inventor:
Steven F. Bolling
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Apr 9, 1999
Inventor
Steven F. Bolling
Assignee (at issue)
Orqis Medical 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.