Granted Patent
Utility
US 5,312,403 · App. 07/917,780
External fixation device
Inventor:
Robert Frigg
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Jul 21, 1992
Inventor
Robert Frigg
Assignee (at issue)
Synthes USA, LLC
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.