Granted Patent
Utility
US 6,549,633 · App. 09/486,181
Binaural digital hearing aid system
Inventor:
Søren Erik Westermann
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Feb 23, 2000
Inventor
Søren Erik Westermann
Assignee (at issue)
Widex A/S
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.