Granted Patent
Utility
US 4,947,844 · App. 06/773,057
Receiver/stimulator for hearing prosthesis
Inventor:
Hugh McDermott
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Sep 6, 1985
Inventor
Hugh McDermott
Assignee (at issue)
The University of Melbourne
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.