Granted Patent
Utility
US 6,428,544 · App. 09/906,120
Insertion tool for use with trial intervertebral distraction spacers
Inventors:
James D. Ralph, Steven Tatar, Thomas J. Errico
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jul 16, 2001
Inventors
James D. Ralph
Steven Tatar
Thomas J. Errico
Assignee (at issue)
THIRD MILLENNIUM ENGINEERING
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.