Granted Patent
Utility
US 6,045,581 · App. 08/989,751
Implantable prosthesis having textured bearing surfaces
Inventor:
Brian D. Burkinshaw
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Dec 12, 1997
Inventor
Brian D. Burkinshaw
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.