Granted Patent
Utility
US 5,690,634 · App. 08/599,505
Medullary drill head
Inventors:
Christof Müller, Peter Christen
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Jan 25, 1996
Inventors
Christof Müller
Peter Christen
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.