Granted Patent
Utility
US 4,421,116 · App. 06/356,791
Heart pacemaker with separate A-V intervals for atrial synchronous and atrial-ventricular sequential pacing modes
Inventor:
H. Toby Markowitz
Patented Case
View Patent ↗
Granted: Dec 20, 1983
Filed: Mar 10, 1982
Inventor
H. Toby Markowitz
Assignee (at issue)
Medtronic, Inc.
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.