Granted Patent
Utility
US 5,443,446 · App. 08/190,990
Method and apparatus for in vivo heart valve decalcification
Inventor:
Leonid Shturman
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Feb 3, 1994
Inventor
Leonid Shturman
Assignee (at issue)
Shturman Cardiology Systems
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.