Granted Patent
Utility
US 5,499,983 · App. 08/200,635
Variable angle spinal screw
Inventor:
Dean Hughes
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Feb 23, 1994
Inventor
Dean Hughes
Assignee (at issue)
Smith & Nephew Richards, 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.