Granted Patent
Utility
US 4,541,430 · App. 06/546,457
Method and a heart pacemaker for terminating a tachycardia
Inventors:
Hakan Elmqvist, Hans Strandberg
Patented Case
View Patent ↗
Granted: Sep 17, 1985
Filed: Oct 28, 1983
Inventors
Hakan Elmqvist
Hans Strandberg
Assignee (at issue)
Siemens Aktiengesellschaft
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.