Granted Patent
Utility
US 4,430,760 · App. 06/332,325
Nonstress-bearing implantable bone prosthesis
Inventor:
Thomas L. Smestad
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Dec 18, 1981
Inventor
Thomas L. Smestad
Assignee (at issue)
COLLAGEN CORPORATION
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.