Granted Patent
Utility
US 6,319,256 · App. 09/502,556
Bone rasp for a femur head prosthesis
Inventors:
Lorenzo Spotorno, Markus Lechner
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Feb 10, 2000
Inventors
Lorenzo Spotorno
Markus Lechner
Assignee (at issue)
Sulzer Orthopedics Ltd.
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.