Granted Patent
Utility
US 6,071,311 · App. 09/134,656
Cylindrical box femoral stem
Inventors:
Michael J. O'Neil, Arnold Oyola
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Aug 14, 1998
Inventors
Michael J. O'Neil
Arnold Oyola
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.