Granted Patent
Utility
US 6,371,983 · App. 09/678,756
Bioprosthetic heart valve
Inventor:
Ernest Lane
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Oct 3, 2000
Inventor
Ernest Lane
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.