Granted Patent
Utility
US 4,349,030 · App. 06/168,381
External noninvasive electric cardiac stimulation
Inventors:
Alan H. Belgard, Paul M. Zoll, Ross H. Zoll
Patented Case
View Patent ↗
Granted: Sep 14, 1982
Filed: Jul 10, 1980
Inventors
Alan H. Belgard
Paul M. Zoll
Ross H. Zoll
Assignee (at issue)
Ross H. Zoll
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.