Granted Patent
Utility
US 4,373,216 · App. 06/302,693
Heart valves having edge-guided occluders
Inventor:
Jerome J. Klawitter
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Sep 15, 1981
Inventor
Jerome J. Klawitter
Assignee (at issue)
Hemex, 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.