Granted Patent
Utility
US 6,475,243 · App. 09/665,025
Acetabular cup assembly with selected bearing
Inventors:
Michael B. Sheldon, Nicholas Nai Guang Dong
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Sep 19, 2000
Inventors
Michael B. Sheldon
Nicholas Nai Guang Dong
Assignee (at issue)
Howmedica Osteonics Corp.
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.