Granted Patent
Utility
US 6,540,661 · App. 09/680,489
Arrangement for coupling of a driver to a coupling site of the ossicular chain
Inventor:
Gerd Müller
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Oct 6, 2000
Inventor
Gerd Müller
Assignee (at issue)
Phonak AG
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.