Granted Patent
Utility
US 6,143,034 · App. 09/126,706
Implantable hinged knee prosthesis having tibial baseplate
Inventor:
James W. Burrows
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Jul 30, 1998
Inventor
James W. Burrows
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.