Granted Patent
Utility
US 5,344,442 · App. 07/884,427
Cardiac valve
Inventor:
Radu Deac
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: May 15, 1992
Inventor
Radu Deac
Assignee (at issue)
Mures Cardiovascular Research, Inc.
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.