Granted Patent
Utility
US 5,562,661 · App. 08/405,813
Top tightening bone fixation apparatus
Inventors:
Shunshiro Yoshimi, Rick B. Delamarter, Angela Melton, Mike Stednitz
Patented Case
View Patent ↗
Granted: Oct 8, 1996
Filed: Mar 16, 1995
Inventors
Shunshiro Yoshimi
Rick B. Delamarter
Angela Melton
Mike Stednitz
Assignee (at issue)
Alphatec Manufacturing, 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.