Granted Patent
Utility
US 6,669,731 · App. 10/035,614
Intervertebral spacer device having a slotted domed arch strip spring
Inventors:
James D. Ralph, Stephen Tatar, Joseph P. Errico
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Nov 9, 2001
Inventors
James D. Ralph
Stephen Tatar
Joseph P. Errico
Assignee (at issue)
SpineCore, 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.