Granted Patent
Utility
US 4,451,937 · App. 06/346,722
Heart valve having ear guided occluders
Inventor:
Jerome J. Klawitter
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Feb 8, 1982
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.