Granted Patent
Utility
US 6,084,972 · App. 08/832,136
Integrated microphone/amplifier unit, and amplifier module therefor
Inventors:
Aart Zeger van Halteren, Engbert Wilmink
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Apr 3, 1997
Inventors
Aart Zeger van Halteren
Engbert Wilmink
Assignee (at issue)
Microtronic Nederland, B.V.
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.