Granted Patent
Utility
US 4,501,030 · App. 06/293,667
Method of leaflet attachment for prosthetic heart valves
Inventor:
Ernest Lane
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Aug 17, 1981
Inventor
Ernest Lane
Assignee (at issue)
American Hospital Supply Corp.
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.