Granted Patent
Utility
US 5,871,549 · App. 08/764,156
Femoral stem with reduced coefficient of friction with respect to bone cement
Inventors:
C. M. Jayashankar, Frank Matthews, Jorge Ochoa
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Dec 12, 1996
Inventors
C. M. Jayashankar
Frank Matthews
Jorge Ochoa
Assignee (at issue)
Johnson & Johnson Professional, 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.