Granted Patent
Utility
US 4,400,833 · App. 06/272,134
Means and method of implanting bioprosthetics
Inventor:
Kenneth Z. Kurland
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Jun 10, 1981
Inventor
Kenneth Z. Kurland
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.