Granted Patent
Utility
US 5,825,896 · App. 08/673,676
Hinged hearing aid
Inventor:
Marvin Allan Leedom
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Jun 26, 1996
Inventor
Marvin Allan Leedom
Assignee (at issue)
David Sarnoff Research Center Inc.
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.