Granted Patent
Utility
US 5,879,401 · App. 08/649,150
Acetabular trial
Inventors:
John W. Besemer, Salvatore Caldarise, Frank Foley, Allan Ritchie, C. M. Jayashankar, Anthony P. Sanders
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: May 17, 1996
Inventors
John W. Besemer
Salvatore Caldarise
Frank Foley
Allan Ritchie
C. M. Jayashankar
Anthony P. Sanders
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.