Granted Patent
Utility
US 5,989,261 · App. 08/898,360
Evaluating the fit of an orthopaedic implant
Inventors:
Peter S. Walker, John N. Insall, Jonathan Blamey, Michael Wadcock, Mark A. Heldreth, Shawn McGinley, Steven A. Zawadzki
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jul 29, 1997
Inventors
Peter S. Walker
John N. Insall
Jonathan Blamey
Michael Wadcock
Mark A. Heldreth
Shawn McGinley
Steven A. Zawadzki
Assignee (at issue)
Zimmer, 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.