Granted Patent
Utility
US 6,390,996 · App. 09/188,211
CPR chest compression monitor
Inventors:
Henry R. Halperin, Ronald D. Berger
Patented Case
View Patent ↗
Granted: May 21, 2002
Filed: Nov 9, 1998
Inventors
Henry R. Halperin
Ronald D. Berger
Assignee (at issue)
The Johns Hopkins University
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.