Granted Patent
Utility
US 5,997,577 · App. 08/926,707
Knee joint prosthesis
Inventors:
Stephen M. Herrington, Adolph V. Lombardi, Bradley Kent Vaughn
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Sep 10, 1997
Inventors
Stephen M. Herrington
Adolph V. Lombardi
Bradley Kent Vaughn
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.