Granted Patent
Utility
US 4,328,808 · App. 06/195,558
Defibrillator with means for determining patient impedance and delivered energy
Inventors:
Francis M. Charbonnier, Paul Long
Patented Case
View Patent ↗
Granted: May 11, 1982
Filed: Oct 9, 1980
Inventors
Francis M. Charbonnier
Paul Long
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.