Granted Patent
Utility
US 4,332,256 · App. 06/129,427
System for monitoring hermetic integrity, pacing pulse and load impedance in cardiac pacers
Inventors:
Robert R. Brownlee, G. Frank O. Tyers, Paul H. Neff
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Mar 12, 1980
Inventors
Robert R. Brownlee
G. Frank O. Tyers
Paul H. Neff
Assignee (at issue)
AGRESEARCH LIMITED
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.