Granted Patent
Utility
US 4,629,459 · App. 06/566,133
Alternate stent covering for tissue valves
Inventors:
Marian I. Ionescu, Jay A. Lenker, Philip S. Yang
Patented Case
View Patent ↗
Granted: Dec 16, 1986
Filed: Dec 28, 1983
Inventors
Marian I. Ionescu
Jay A. Lenker
Philip S. Yang
Assignee (at issue)
Shiley Incorporated
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.