Granted Patent
Utility
US 6,766,031 · App. 09/403,203
In-the-ear hearing aid with reduced occlusion effect and a method for the production and user-fitting of such a hearing aid
Inventor:
Soren Erik Westermann
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Feb 11, 2000
Inventor
Soren 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.