Granted Patent
Utility
US 5,796,848 · App. 08/761,495
Digital hearing aid
Inventor:
Raimund Martin
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Dec 6, 1996
Inventor
Raimund Martin
Assignee (at issue)
Siemens Audiologische Technik GmbH
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.