Granted Patent
Utility
US 5,116,336 · App. 07/539,595
Osteosynthetic anchor bolt
Inventor:
Robert Frigg
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Jun 18, 1990
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.