Granted Patent
Utility
US 6,410,997 · App. 09/124,948
Power source for a hearing aid
Inventors:
Walter P. Sjursen, Gary John Hollingsworth, Marvin Allan Leedom, Derek Mahoney
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Jul 30, 1998
Inventors
Walter P. Sjursen
Gary John Hollingsworth
Marvin Allan Leedom
Derek Mahoney
Assignee (at issue)
Sarnoff Corporation
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.