Granted Patent
Utility
US 4,554,920 · App. 06/443,830
Microprocessor controlled cardiac pacemaker and method for avoiding pacer sustained tachycardia
Inventors:
Ross G. Baker, Jr., Richard V. Calfee
Patented Case
View Patent ↗
Granted: Nov 26, 1985
Filed: Nov 22, 1982
Inventors
Ross G. Baker, Jr.
Richard V. Calfee
Assignee (at issue)
Intermedics 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.