Granted Patent
Utility
US 5,222,503 · App. 07/690,733
Ambulatory electroencephalography system
Inventors:
John R. Ives, Norman R. Mainwaring
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Apr 24, 1991
Inventors
John R. Ives
Norman R. Mainwaring
Assignee (at issue)
Beth Israel Hospital Association
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.